Home / 25,970.36-38,960.39-10,389.20

Finding the Fourth Proportional to 25,970.36, 38,960.39 and 10,389.20

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Solution

The fourth proportional to 25,970.36, 38,960.39 and 10,389.20 is: 15,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,970.36 : 38,960.39 = 10,389.20 : x
  2. Step 2: Convert to fraction form
    25,970.36/38,960.39 = 10,389.20/x
  3. Step 3: Cross multiply
    25,970.36x = 38,960.39 × 10,389.20
  4. Step 4: Simplify right side
    25,970.36x = 404,767,114.96
  5. Step 5: Solve for x
    x = 404,767,114.96/25,970.36
  6. Step 6: Final answer
    x = 15,585.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.