Home / 28,445.40-42,644-11,795.04

Finding the Fourth Proportional to 28,445.40, 42,644 and 11,795.04

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Solution

The fourth proportional to 28,445.40, 42,644 and 11,795.04 is: 17,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.40 : 42,644 = 11,795.04 : x
  2. Step 2: Convert to fraction form
    28,445.40/42,644 = 11,795.04/x
  3. Step 3: Cross multiply
    28,445.40x = 42,644 × 11,795.04
  4. Step 4: Simplify right side
    28,445.40x = 502,987,685.76
  5. Step 5: Solve for x
    x = 502,987,685.76/28,445.40
  6. Step 6: Final answer
    x = 17,682.57

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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.