Home / 39,966.86-59,951.25-18,916.72

Finding the Fourth Proportional to 39,966.86, 59,951.25 and 18,916.72

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Solution

The fourth proportional to 39,966.86, 59,951.25 and 18,916.72 is: 28,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,966.86 : 59,951.25 = 18,916.72 : x
  2. Step 2: Convert to fraction form
    39,966.86/59,951.25 = 18,916.72/x
  3. Step 3: Cross multiply
    39,966.86x = 59,951.25 × 18,916.72
  4. Step 4: Simplify right side
    39,966.86x = 1,134,080,860.02
  5. Step 5: Solve for x
    x = 1,134,080,860.02/39,966.86
  6. Step 6: Final answer
    x = 28,375.53

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1.5x scale

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.