Home / 31,715.89-47,574.61-10,656.66

Finding the Fourth Proportional to 31,715.89, 47,574.61 and 10,656.66

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Solution

The fourth proportional to 31,715.89, 47,574.61 and 10,656.66 is: 15,985.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,715.89 : 47,574.61 = 10,656.66 : x
  2. Step 2: Convert to fraction form
    31,715.89/47,574.61 = 10,656.66/x
  3. Step 3: Cross multiply
    31,715.89x = 47,574.61 × 10,656.66
  4. Step 4: Simplify right side
    31,715.89x = 506,986,595.17
  5. Step 5: Solve for x
    x = 506,986,595.17/31,715.89
  6. Step 6: Final answer
    x = 15,985.26

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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.