Home / 34,688.40-47,869.82-18,772.71

Finding the Fourth Proportional to 34,688.40, 47,869.82 and 18,772.71

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Solution

The fourth proportional to 34,688.40, 47,869.82 and 18,772.71 is: 25,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,688.40 : 47,869.82 = 18,772.71 : x
  2. Step 2: Convert to fraction form
    34,688.40/47,869.82 = 18,772.71/x
  3. Step 3: Cross multiply
    34,688.40x = 47,869.82 × 18,772.71
  4. Step 4: Simplify right side
    34,688.40x = 898,646,154.75
  5. Step 5: Solve for x
    x = 898,646,154.75/34,688.40
  6. Step 6: Final answer
    x = 25,906.24

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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.