Home / 25,346.92-34,980.08-15,278.56

Finding the Fourth Proportional to 25,346.92, 34,980.08 and 15,278.56

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Solution

The fourth proportional to 25,346.92, 34,980.08 and 15,278.56 is: 21,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,346.92 : 34,980.08 = 15,278.56 : x
  2. Step 2: Convert to fraction form
    25,346.92/34,980.08 = 15,278.56/x
  3. Step 3: Cross multiply
    25,346.92x = 34,980.08 × 15,278.56
  4. Step 4: Simplify right side
    25,346.92x = 534,445,251.08
  5. Step 5: Solve for x
    x = 534,445,251.08/25,346.92
  6. Step 6: Final answer
    x = 21,085.21

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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.