Home / 47,445.90-71,113.26-19,348.40

Finding the Fourth Proportional to 47,445.90, 71,113.26 and 19,348.40

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Solution

The fourth proportional to 47,445.90, 71,113.26 and 19,348.40 is: 28,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,445.90 : 71,113.26 = 19,348.40 : x
  2. Step 2: Convert to fraction form
    47,445.90/71,113.26 = 19,348.40/x
  3. Step 3: Cross multiply
    47,445.90x = 71,113.26 × 19,348.40
  4. Step 4: Simplify right side
    47,445.90x = 1,375,927,799.78
  5. Step 5: Solve for x
    x = 1,375,927,799.78/47,445.90
  6. Step 6: Final answer
    x = 28,999.93

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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.