Home / 19,695.11-29,577.89-18,902.32

Finding the Fourth Proportional to 19,695.11, 29,577.89 and 18,902.32

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Solution

The fourth proportional to 19,695.11, 29,577.89 and 18,902.32 is: 28,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.11 : 29,577.89 = 18,902.32 : x
  2. Step 2: Convert to fraction form
    19,695.11/29,577.89 = 18,902.32/x
  3. Step 3: Cross multiply
    19,695.11x = 29,577.89 × 18,902.32
  4. Step 4: Simplify right side
    19,695.11x = 559,090,715.02
  5. Step 5: Solve for x
    x = 559,090,715.02/19,695.11
  6. Step 6: Final answer
    x = 28,387.29

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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.