Home / 18,389.19-25,377.33-10,431.24

Finding the Fourth Proportional to 18,389.19, 25,377.33 and 10,431.24

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Solution

The fourth proportional to 18,389.19, 25,377.33 and 10,431.24 is: 14,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.19 : 25,377.33 = 10,431.24 : x
  2. Step 2: Convert to fraction form
    18,389.19/25,377.33 = 10,431.24/x
  3. Step 3: Cross multiply
    18,389.19x = 25,377.33 × 10,431.24
  4. Step 4: Simplify right side
    18,389.19x = 264,717,019.79
  5. Step 5: Solve for x
    x = 264,717,019.79/18,389.19
  6. Step 6: Final answer
    x = 14,395.25

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Half scale
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Double scale
Find fourth proportional to 18,390.19, 25,378.71 and 10,432.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.