Home / 31,352.60-47,048.40-19,529.60

Finding the Fourth Proportional to 31,352.60, 47,048.40 and 19,529.60

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Solution

The fourth proportional to 31,352.60, 47,048.40 and 19,529.60 is: 29,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,352.60 : 47,048.40 = 19,529.60 : x
  2. Step 2: Convert to fraction form
    31,352.60/47,048.40 = 19,529.60/x
  3. Step 3: Cross multiply
    31,352.60x = 47,048.40 × 19,529.60
  4. Step 4: Simplify right side
    31,352.60x = 918,836,432.64
  5. Step 5: Solve for x
    x = 918,836,432.64/31,352.60
  6. Step 6: Final answer
    x = 29,306.55

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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.