Home / 39,815.40-59,723.10-28,151.40

Finding the Fourth Proportional to 39,815.40, 59,723.10 and 28,151.40

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Solution

The fourth proportional to 39,815.40, 59,723.10 and 28,151.40 is: 42,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,815.40 : 59,723.10 = 28,151.40 : x
  2. Step 2: Convert to fraction form
    39,815.40/59,723.10 = 28,151.40/x
  3. Step 3: Cross multiply
    39,815.40x = 59,723.10 × 28,151.40
  4. Step 4: Simplify right side
    39,815.40x = 1,681,288,877.34
  5. Step 5: Solve for x
    x = 1,681,288,877.34/39,815.40
  6. Step 6: Final answer
    x = 42,227.10

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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.