Home / 25,140.32-37,691.04-16,820

Finding the Fourth Proportional to 25,140.32, 37,691.04 and 16,820

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Solution

The fourth proportional to 25,140.32, 37,691.04 and 16,820 is: 25,216.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.32 : 37,691.04 = 16,820 : x
  2. Step 2: Convert to fraction form
    25,140.32/37,691.04 = 16,820/x
  3. Step 3: Cross multiply
    25,140.32x = 37,691.04 × 16,820
  4. Step 4: Simplify right side
    25,140.32x = 633,963,292.80
  5. Step 5: Solve for x
    x = 633,963,292.80/25,140.32
  6. Step 6: Final answer
    x = 25,216.99

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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.