Home / 28,233.04-38,961.52-15,486.28

Finding the Fourth Proportional to 28,233.04, 38,961.52 and 15,486.28

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Solution

The fourth proportional to 28,233.04, 38,961.52 and 15,486.28 is: 21,371.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.04 : 38,961.52 = 15,486.28 : x
  2. Step 2: Convert to fraction form
    28,233.04/38,961.52 = 15,486.28/x
  3. Step 3: Cross multiply
    28,233.04x = 38,961.52 × 15,486.28
  4. Step 4: Simplify right side
    28,233.04x = 603,369,007.95
  5. Step 5: Solve for x
    x = 603,369,007.95/28,233.04
  6. Step 6: Final answer
    x = 21,371.03

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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.