Home / 38,100.01-57,152.76-13,139.70

Finding the Fourth Proportional to 38,100.01, 57,152.76 and 13,139.70

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Solution

The fourth proportional to 38,100.01, 57,152.76 and 13,139.70 is: 19,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,100.01 : 57,152.76 = 13,139.70 : x
  2. Step 2: Convert to fraction form
    38,100.01/57,152.76 = 13,139.70/x
  3. Step 3: Cross multiply
    38,100.01x = 57,152.76 × 13,139.70
  4. Step 4: Simplify right side
    38,100.01x = 750,970,120.57
  5. Step 5: Solve for x
    x = 750,970,120.57/38,100.01
  6. Step 6: Final answer
    x = 19,710.50

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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.