Home / 18,423.20-25,424.16-10,039.68

Finding the Fourth Proportional to 18,423.20, 25,424.16 and 10,039.68

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Solution

The fourth proportional to 18,423.20, 25,424.16 and 10,039.68 is: 13,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.20 : 25,424.16 = 10,039.68 : x
  2. Step 2: Convert to fraction form
    18,423.20/25,424.16 = 10,039.68/x
  3. Step 3: Cross multiply
    18,423.20x = 25,424.16 × 10,039.68
  4. Step 4: Simplify right side
    18,423.20x = 255,250,430.67
  5. Step 5: Solve for x
    x = 255,250,430.67/18,423.20
  6. Step 6: Final answer
    x = 13,854.84

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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.