Home / 20,029.17-27,630.86-12,957.87

Finding the Fourth Proportional to 20,029.17, 27,630.86 and 12,957.87

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Solution

The fourth proportional to 20,029.17, 27,630.86 and 12,957.87 is: 17,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.17 : 27,630.86 = 12,957.87 : x
  2. Step 2: Convert to fraction form
    20,029.17/27,630.86 = 12,957.87/x
  3. Step 3: Cross multiply
    20,029.17x = 27,630.86 × 12,957.87
  4. Step 4: Simplify right side
    20,029.17x = 358,037,027.08
  5. Step 5: Solve for x
    x = 358,037,027.08/20,029.17
  6. Step 6: Final answer
    x = 17,875.78

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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.