Home / 38,539.70-53,121.12-25,788.30

Finding the Fourth Proportional to 38,539.70, 53,121.12 and 25,788.30

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Solution

The fourth proportional to 38,539.70, 53,121.12 and 25,788.30 is: 35,545.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,539.70 : 53,121.12 = 25,788.30 : x
  2. Step 2: Convert to fraction form
    38,539.70/53,121.12 = 25,788.30/x
  3. Step 3: Cross multiply
    38,539.70x = 53,121.12 × 25,788.30
  4. Step 4: Simplify right side
    38,539.70x = 1,369,903,378.90
  5. Step 5: Solve for x
    x = 1,369,903,378.90/38,539.70
  6. Step 6: Final answer
    x = 35,545.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.