Home / 28,549.46-39,398.33-15,803.52

Finding the Fourth Proportional to 28,549.46, 39,398.33 and 15,803.52

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Solution

The fourth proportional to 28,549.46, 39,398.33 and 15,803.52 is: 21,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,549.46 : 39,398.33 = 15,803.52 : x
  2. Step 2: Convert to fraction form
    28,549.46/39,398.33 = 15,803.52/x
  3. Step 3: Cross multiply
    28,549.46x = 39,398.33 × 15,803.52
  4. Step 4: Simplify right side
    28,549.46x = 622,632,217.10
  5. Step 5: Solve for x
    x = 622,632,217.10/28,549.46
  6. Step 6: Final answer
    x = 21,808.90

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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.