Home / 29,319.32-40,460.49-15,890.57

Finding the Fourth Proportional to 29,319.32, 40,460.49 and 15,890.57

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Solution

The fourth proportional to 29,319.32, 40,460.49 and 15,890.57 is: 21,928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,319.32 : 40,460.49 = 15,890.57 : x
  2. Step 2: Convert to fraction form
    29,319.32/40,460.49 = 15,890.57/x
  3. Step 3: Cross multiply
    29,319.32x = 40,460.49 × 15,890.57
  4. Step 4: Simplify right side
    29,319.32x = 642,940,248.58
  5. Step 5: Solve for x
    x = 642,940,248.58/29,319.32
  6. Step 6: Final answer
    x = 21,928.89

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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.