Home / 28,125.08-38,811.06-15,549

Finding the Fourth Proportional to 28,125.08, 38,811.06 and 15,549

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Solution

The fourth proportional to 28,125.08, 38,811.06 and 15,549 is: 21,456.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.08 : 38,811.06 = 15,549 : x
  2. Step 2: Convert to fraction form
    28,125.08/38,811.06 = 15,549/x
  3. Step 3: Cross multiply
    28,125.08x = 38,811.06 × 15,549
  4. Step 4: Simplify right side
    28,125.08x = 603,473,171.94
  5. Step 5: Solve for x
    x = 603,473,171.94/28,125.08
  6. Step 6: Final answer
    x = 21,456.76

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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.