Home / 28,444.50-39,255.30-15,869.52

Finding the Fourth Proportional to 28,444.50, 39,255.30 and 15,869.52

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Solution

The fourth proportional to 28,444.50, 39,255.30 and 15,869.52 is: 21,900.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.50 : 39,255.30 = 15,869.52 : x
  2. Step 2: Convert to fraction form
    28,444.50/39,255.30 = 15,869.52/x
  3. Step 3: Cross multiply
    28,444.50x = 39,255.30 × 15,869.52
  4. Step 4: Simplify right side
    28,444.50x = 622,962,768.46
  5. Step 5: Solve for x
    x = 622,962,768.46/28,444.50
  6. Step 6: Final answer
    x = 21,900.99

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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.