Home / 31,470.79-47,189.92-9,281.34

Finding the Fourth Proportional to 31,470.79, 47,189.92 and 9,281.34

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Solution

The fourth proportional to 31,470.79, 47,189.92 and 9,281.34 is: 13,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.79 : 47,189.92 = 9,281.34 : x
  2. Step 2: Convert to fraction form
    31,470.79/47,189.92 = 9,281.34/x
  3. Step 3: Cross multiply
    31,470.79x = 47,189.92 × 9,281.34
  4. Step 4: Simplify right side
    31,470.79x = 437,985,692.09
  5. Step 5: Solve for x
    x = 437,985,692.09/31,470.79
  6. Step 6: Final answer
    x = 13,917.21

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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.