Home / 34,572.81-47,711.09-20,425.62

Finding the Fourth Proportional to 34,572.81, 47,711.09 and 20,425.62

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Solution

The fourth proportional to 34,572.81, 47,711.09 and 20,425.62 is: 28,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,572.81 : 47,711.09 = 20,425.62 : x
  2. Step 2: Convert to fraction form
    34,572.81/47,711.09 = 20,425.62/x
  3. Step 3: Cross multiply
    34,572.81x = 47,711.09 × 20,425.62
  4. Step 4: Simplify right side
    34,572.81x = 974,528,492.00
  5. Step 5: Solve for x
    x = 974,528,492.00/34,572.81
  6. Step 6: Final answer
    x = 28,187.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.