Home / 28,241.09-38,972.35-15,320.18

Finding the Fourth Proportional to 28,241.09, 38,972.35 and 15,320.18

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Solution

The fourth proportional to 28,241.09, 38,972.35 and 15,320.18 is: 21,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.09 : 38,972.35 = 15,320.18 : x
  2. Step 2: Convert to fraction form
    28,241.09/38,972.35 = 15,320.18/x
  3. Step 3: Cross multiply
    28,241.09x = 38,972.35 × 15,320.18
  4. Step 4: Simplify right side
    28,241.09x = 597,063,417.02
  5. Step 5: Solve for x
    x = 597,063,417.02/28,241.09
  6. Step 6: Final answer
    x = 21,141.66

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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.