Home / 31,685.72-47,503.67-15,882.82

Finding the Fourth Proportional to 31,685.72, 47,503.67 and 15,882.82

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Solution

The fourth proportional to 31,685.72, 47,503.67 and 15,882.82 is: 23,811.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.72 : 47,503.67 = 15,882.82 : x
  2. Step 2: Convert to fraction form
    31,685.72/47,503.67 = 15,882.82/x
  3. Step 3: Cross multiply
    31,685.72x = 47,503.67 × 15,882.82
  4. Step 4: Simplify right side
    31,685.72x = 754,492,041.78
  5. Step 5: Solve for x
    x = 754,492,041.78/31,685.72
  6. Step 6: Final answer
    x = 23,811.74

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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.