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Finding the Fourth Proportional to 38,090.60, 57,100.90 and 13,124.71

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Solution

The fourth proportional to 38,090.60, 57,100.90 and 13,124.71 is: 19,675.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,090.60 : 57,100.90 = 13,124.71 : x
  2. Step 2: Convert to fraction form
    38,090.60/57,100.90 = 13,124.71/x
  3. Step 3: Cross multiply
    38,090.60x = 57,100.90 × 13,124.71
  4. Step 4: Simplify right side
    38,090.60x = 749,432,753.24
  5. Step 5: Solve for x
    x = 749,432,753.24/38,090.60
  6. Step 6: Final answer
    x = 19,675.01

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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.