Home / 38,631.47-57,984.66-18,655.07

Finding the Fourth Proportional to 38,631.47, 57,984.66 and 18,655.07

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Solution

The fourth proportional to 38,631.47, 57,984.66 and 18,655.07 is: 28,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.47 : 57,984.66 = 18,655.07 : x
  2. Step 2: Convert to fraction form
    38,631.47/57,984.66 = 18,655.07/x
  3. Step 3: Cross multiply
    38,631.47x = 57,984.66 × 18,655.07
  4. Step 4: Simplify right side
    38,631.47x = 1,081,707,601.30
  5. Step 5: Solve for x
    x = 1,081,707,601.30/38,631.47
  6. Step 6: Final answer
    x = 28,000.69

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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.