Home / 31,854.79-47,656.43-28,115.02

Finding the Fourth Proportional to 31,854.79, 47,656.43 and 28,115.02

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Solution

The fourth proportional to 31,854.79, 47,656.43 and 28,115.02 is: 42,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,854.79 : 47,656.43 = 28,115.02 : x
  2. Step 2: Convert to fraction form
    31,854.79/47,656.43 = 28,115.02/x
  3. Step 3: Cross multiply
    31,854.79x = 47,656.43 × 28,115.02
  4. Step 4: Simplify right side
    31,854.79x = 1,339,861,482.58
  5. Step 5: Solve for x
    x = 1,339,861,482.58/31,854.79
  6. Step 6: Final answer
    x = 42,061.54

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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.