Home / 28,127.79-42,155.10-25,148.93

Finding the Fourth Proportional to 28,127.79, 42,155.10 and 25,148.93

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Solution

The fourth proportional to 28,127.79, 42,155.10 and 25,148.93 is: 37,690.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.79 : 42,155.10 = 25,148.93 : x
  2. Step 2: Convert to fraction form
    28,127.79/42,155.10 = 25,148.93/x
  3. Step 3: Cross multiply
    28,127.79x = 42,155.10 × 25,148.93
  4. Step 4: Simplify right side
    28,127.79x = 1,060,155,448.27
  5. Step 5: Solve for x
    x = 1,060,155,448.27/28,127.79
  6. Step 6: Final answer
    x = 37,690.68

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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.