Home / 31,693.68-47,400.80-28,206.63

Finding the Fourth Proportional to 31,693.68, 47,400.80 and 28,206.63

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Solution

The fourth proportional to 31,693.68, 47,400.80 and 28,206.63 is: 42,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,693.68 : 47,400.80 = 28,206.63 : x
  2. Step 2: Convert to fraction form
    31,693.68/47,400.80 = 28,206.63/x
  3. Step 3: Cross multiply
    31,693.68x = 47,400.80 × 28,206.63
  4. Step 4: Simplify right side
    31,693.68x = 1,337,016,686.27
  5. Step 5: Solve for x
    x = 1,337,016,686.27/31,693.68
  6. Step 6: Final answer
    x = 42,185.59

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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.