Home / 25,695.81-38,489.40-13,177.71

Finding the Fourth Proportional to 25,695.81, 38,489.40 and 13,177.71

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Solution

The fourth proportional to 25,695.81, 38,489.40 and 13,177.71 is: 19,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,695.81 : 38,489.40 = 13,177.71 : x
  2. Step 2: Convert to fraction form
    25,695.81/38,489.40 = 13,177.71/x
  3. Step 3: Cross multiply
    25,695.81x = 38,489.40 × 13,177.71
  4. Step 4: Simplify right side
    25,695.81x = 507,202,151.27
  5. Step 5: Solve for x
    x = 507,202,151.27/25,695.81
  6. Step 6: Final answer
    x = 19,738.71

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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.