Home / 28,248.04-38,982.30-15,672.76

Finding the Fourth Proportional to 28,248.04, 38,982.30 and 15,672.76

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Solution

The fourth proportional to 28,248.04, 38,982.30 and 15,672.76 is: 21,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.04 : 38,982.30 = 15,672.76 : x
  2. Step 2: Convert to fraction form
    28,248.04/38,982.30 = 15,672.76/x
  3. Step 3: Cross multiply
    28,248.04x = 38,982.30 × 15,672.76
  4. Step 4: Simplify right side
    28,248.04x = 610,960,232.15
  5. Step 5: Solve for x
    x = 610,960,232.15/28,248.04
  6. Step 6: Final answer
    x = 21,628.41

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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.