Home / 47,390.40-71,085.60-21,089.16

Finding the Fourth Proportional to 47,390.40, 71,085.60 and 21,089.16

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Solution

The fourth proportional to 47,390.40, 71,085.60 and 21,089.16 is: 31,633.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,390.40 : 71,085.60 = 21,089.16 : x
  2. Step 2: Convert to fraction form
    47,390.40/71,085.60 = 21,089.16/x
  3. Step 3: Cross multiply
    47,390.40x = 71,085.60 × 21,089.16
  4. Step 4: Simplify right side
    47,390.40x = 1,499,135,592.10
  5. Step 5: Solve for x
    x = 1,499,135,592.10/47,390.40
  6. Step 6: Final answer
    x = 31,633.74

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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.