Home / 25,230.60-34,801.56-15,782.76

Finding the Fourth Proportional to 25,230.60, 34,801.56 and 15,782.76

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Solution

The fourth proportional to 25,230.60, 34,801.56 and 15,782.76 is: 21,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,230.60 : 34,801.56 = 15,782.76 : x
  2. Step 2: Convert to fraction form
    25,230.60/34,801.56 = 15,782.76/x
  3. Step 3: Cross multiply
    25,230.60x = 34,801.56 × 15,782.76
  4. Step 4: Simplify right side
    25,230.60x = 549,264,669.11
  5. Step 5: Solve for x
    x = 549,264,669.11/25,230.60
  6. Step 6: Final answer
    x = 21,769.78

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Half scale
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Double scale
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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.