Home / 28,153.72-38,852.15-17,543.39

Finding the Fourth Proportional to 28,153.72, 38,852.15 and 17,543.39

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Solution

The fourth proportional to 28,153.72, 38,852.15 and 17,543.39 is: 24,209.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,153.72 : 38,852.15 = 17,543.39 : x
  2. Step 2: Convert to fraction form
    28,153.72/38,852.15 = 17,543.39/x
  3. Step 3: Cross multiply
    28,153.72x = 38,852.15 × 17,543.39
  4. Step 4: Simplify right side
    28,153.72x = 681,598,429.20
  5. Step 5: Solve for x
    x = 681,598,429.20/28,153.72
  6. Step 6: Final answer
    x = 24,209.89

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1.5x scale

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.