Home / 21,615.57-29,854.08-14,529.69

Finding the Fourth Proportional to 21,615.57, 29,854.08 and 14,529.69

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Solution

The fourth proportional to 21,615.57, 29,854.08 and 14,529.69 is: 20,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.57 : 29,854.08 = 14,529.69 : x
  2. Step 2: Convert to fraction form
    21,615.57/29,854.08 = 14,529.69/x
  3. Step 3: Cross multiply
    21,615.57x = 29,854.08 × 14,529.69
  4. Step 4: Simplify right side
    21,615.57x = 433,770,527.64
  5. Step 5: Solve for x
    x = 433,770,527.64/21,615.57
  6. Step 6: Final answer
    x = 20,067.50

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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.