Home / 20,775,142.32-31,304,518.85-17,071,589.04

Finding the Fourth Proportional to 20,775,142.32, 31,304,518.85 and 17,071,589.04

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Solution

The fourth proportional to 20,775,142.32, 31,304,518.85 and 17,071,589.04 is: 25,723,909.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,142.32 : 31,304,518.85 = 17,071,589.04 : x
  2. Step 2: Convert to fraction form
    20,775,142.32/31,304,518.85 = 17,071,589.04/x
  3. Step 3: Cross multiply
    20,775,142.32x = 31,304,518.85 × 17,071,589.04
  4. Step 4: Simplify right side
    20,775,142.32x = 534,417,880,816,775.44
  5. Step 5: Solve for x
    x = 534,417,880,816,775.44/20,775,142.32
  6. Step 6: Final answer
    x = 25,723,909.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.