Home / 21,192,041.53-31,732,563.93-13,882,505.95

Finding the Fourth Proportional to 21,192,041.53, 31,732,563.93 and 13,882,505.95

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Solution

The fourth proportional to 21,192,041.53, 31,732,563.93 and 13,882,505.95 is: 20,787,402.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192,041.53 : 31,732,563.93 = 13,882,505.95 : x
  2. Step 2: Convert to fraction form
    21,192,041.53/31,732,563.93 = 13,882,505.95/x
  3. Step 3: Cross multiply
    21,192,041.53x = 31,732,563.93 × 13,882,505.95
  4. Step 4: Simplify right side
    21,192,041.53x = 440,527,507,566,980.38
  5. Step 5: Solve for x
    x = 440,527,507,566,980.38/21,192,041.53
  6. Step 6: Final answer
    x = 20,787,402.99

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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.