Home / 19,901.88-29,779.18-12,008.97

Finding the Fourth Proportional to 19,901.88, 29,779.18 and 12,008.97

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Solution

The fourth proportional to 19,901.88, 29,779.18 and 12,008.97 is: 17,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901.88 : 29,779.18 = 12,008.97 : x
  2. Step 2: Convert to fraction form
    19,901.88/29,779.18 = 12,008.97/x
  3. Step 3: Cross multiply
    19,901.88x = 29,779.18 × 12,008.97
  4. Step 4: Simplify right side
    19,901.88x = 357,617,279.24
  5. Step 5: Solve for x
    x = 357,617,279.24/19,901.88
  6. Step 6: Final answer
    x = 17,969.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.