Home / 19,862.60-29,729.10-15,931.40

Finding the Fourth Proportional to 19,862.60, 29,729.10 and 15,931.40

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Solution

The fourth proportional to 19,862.60, 29,729.10 and 15,931.40 is: 23,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.60 : 29,729.10 = 15,931.40 : x
  2. Step 2: Convert to fraction form
    19,862.60/29,729.10 = 15,931.40/x
  3. Step 3: Cross multiply
    19,862.60x = 29,729.10 × 15,931.40
  4. Step 4: Simplify right side
    19,862.60x = 473,626,183.74
  5. Step 5: Solve for x
    x = 473,626,183.74/19,862.60
  6. Step 6: Final answer
    x = 23,845.13

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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.