Home / 31,616.70-47,427.45-9,428.34

Finding the Fourth Proportional to 31,616.70, 47,427.45 and 9,428.34

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Solution

The fourth proportional to 31,616.70, 47,427.45 and 9,428.34 is: 14,143.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616.70 : 47,427.45 = 9,428.34 : x
  2. Step 2: Convert to fraction form
    31,616.70/47,427.45 = 9,428.34/x
  3. Step 3: Cross multiply
    31,616.70x = 47,427.45 × 9,428.34
  4. Step 4: Simplify right side
    31,616.70x = 447,162,123.93
  5. Step 5: Solve for x
    x = 447,162,123.93/31,616.70
  6. Step 6: Final answer
    x = 14,143.23

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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.