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Finding the Fourth Proportional to 35,601.80, 53,445.90 and 19,819.40

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Solution

The fourth proportional to 35,601.80, 53,445.90 and 19,819.40 is: 29,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,601.80 : 53,445.90 = 19,819.40 : x
  2. Step 2: Convert to fraction form
    35,601.80/53,445.90 = 19,819.40/x
  3. Step 3: Cross multiply
    35,601.80x = 53,445.90 × 19,819.40
  4. Step 4: Simplify right side
    35,601.80x = 1,059,265,670.46
  5. Step 5: Solve for x
    x = 1,059,265,670.46/35,601.80
  6. Step 6: Final answer
    x = 29,753.15

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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.