Home / 41,130.28-61,685.70-18,929.80

Finding the Fourth Proportional to 41,130.28, 61,685.70 and 18,929.80

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Solution

The fourth proportional to 41,130.28, 61,685.70 and 18,929.80 is: 28,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,130.28 : 61,685.70 = 18,929.80 : x
  2. Step 2: Convert to fraction form
    41,130.28/61,685.70 = 18,929.80/x
  3. Step 3: Cross multiply
    41,130.28x = 61,685.70 × 18,929.80
  4. Step 4: Simplify right side
    41,130.28x = 1,167,697,963.86
  5. Step 5: Solve for x
    x = 1,167,697,963.86/41,130.28
  6. Step 6: Final answer
    x = 28,390.23

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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.