Home / 34,421.28-47,482.08-21,669.72

Finding the Fourth Proportional to 34,421.28, 47,482.08 and 21,669.72

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Solution

The fourth proportional to 34,421.28, 47,482.08 and 21,669.72 is: 29,892.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,421.28 : 47,482.08 = 21,669.72 : x
  2. Step 2: Convert to fraction form
    34,421.28/47,482.08 = 21,669.72/x
  3. Step 3: Cross multiply
    34,421.28x = 47,482.08 × 21,669.72
  4. Step 4: Simplify right side
    34,421.28x = 1,028,923,378.62
  5. Step 5: Solve for x
    x = 1,028,923,378.62/34,421.28
  6. Step 6: Final answer
    x = 29,892.07

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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.