Home / 20,037.42-27,642.33-12,966.12

Finding the Fourth Proportional to 20,037.42, 27,642.33 and 12,966.12

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Solution

The fourth proportional to 20,037.42, 27,642.33 and 12,966.12 is: 17,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.42 : 27,642.33 = 12,966.12 : x
  2. Step 2: Convert to fraction form
    20,037.42/27,642.33 = 12,966.12/x
  3. Step 3: Cross multiply
    20,037.42x = 27,642.33 × 12,966.12
  4. Step 4: Simplify right side
    20,037.42x = 358,413,767.86
  5. Step 5: Solve for x
    x = 358,413,767.86/20,037.42
  6. Step 6: Final answer
    x = 17,887.22

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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.