Home / 31,342.14-47,032.65-28,115.10

Finding the Fourth Proportional to 31,342.14, 47,032.65 and 28,115.10

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Solution

The fourth proportional to 31,342.14, 47,032.65 and 28,115.10 is: 42,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,342.14 : 47,032.65 = 28,115.10 : x
  2. Step 2: Convert to fraction form
    31,342.14/47,032.65 = 28,115.10/x
  3. Step 3: Cross multiply
    31,342.14x = 47,032.65 × 28,115.10
  4. Step 4: Simplify right side
    31,342.14x = 1,322,327,658.02
  5. Step 5: Solve for x
    x = 1,322,327,658.02/31,342.14
  6. Step 6: Final answer
    x = 42,190.09

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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.