Home / 21,285.27-29,373.51-12,332.58

Finding the Fourth Proportional to 21,285.27, 29,373.51 and 12,332.58

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Solution

The fourth proportional to 21,285.27, 29,373.51 and 12,332.58 is: 17,018.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285.27 : 29,373.51 = 12,332.58 : x
  2. Step 2: Convert to fraction form
    21,285.27/29,373.51 = 12,332.58/x
  3. Step 3: Cross multiply
    21,285.27x = 29,373.51 × 12,332.58
  4. Step 4: Simplify right side
    21,285.27x = 362,251,161.96
  5. Step 5: Solve for x
    x = 362,251,161.96/21,285.27
  6. Step 6: Final answer
    x = 17,018.87

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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.