Home / 19,700.04-27,177.30-12,977.04

Finding the Fourth Proportional to 19,700.04, 27,177.30 and 12,977.04

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Solution

The fourth proportional to 19,700.04, 27,177.30 and 12,977.04 is: 17,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,700.04 : 27,177.30 = 12,977.04 : x
  2. Step 2: Convert to fraction form
    19,700.04/27,177.30 = 12,977.04/x
  3. Step 3: Cross multiply
    19,700.04x = 27,177.30 × 12,977.04
  4. Step 4: Simplify right side
    19,700.04x = 352,680,909.19
  5. Step 5: Solve for x
    x = 352,680,909.19/19,700.04
  6. Step 6: Final answer
    x = 17,902.55

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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.