Home / 38,862.40-58,255.20-15,457.60

Finding the Fourth Proportional to 38,862.40, 58,255.20 and 15,457.60

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Solution

The fourth proportional to 38,862.40, 58,255.20 and 15,457.60 is: 23,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,862.40 : 58,255.20 = 15,457.60 : x
  2. Step 2: Convert to fraction form
    38,862.40/58,255.20 = 15,457.60/x
  3. Step 3: Cross multiply
    38,862.40x = 58,255.20 × 15,457.60
  4. Step 4: Simplify right side
    38,862.40x = 900,485,579.52
  5. Step 5: Solve for x
    x = 900,485,579.52/38,862.40
  6. Step 6: Final answer
    x = 23,171.13

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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.