Home / 31,428.90-47,158.71-14,790.59

Finding the Fourth Proportional to 31,428.90, 47,158.71 and 14,790.59

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Solution

The fourth proportional to 31,428.90, 47,158.71 and 14,790.59 is: 22,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.90 : 47,158.71 = 14,790.59 : x
  2. Step 2: Convert to fraction form
    31,428.90/47,158.71 = 14,790.59/x
  3. Step 3: Cross multiply
    31,428.90x = 47,158.71 × 14,790.59
  4. Step 4: Simplify right side
    31,428.90x = 697,504,908.75
  5. Step 5: Solve for x
    x = 697,504,908.75/31,428.90
  6. Step 6: Final answer
    x = 22,193.11

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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.