Home / 28,125.46-38,814.69-15,549.94

Finding the Fourth Proportional to 28,125.46, 38,814.69 and 15,549.94

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Solution

The fourth proportional to 28,125.46, 38,814.69 and 15,549.94 is: 21,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.46 : 38,814.69 = 15,549.94 : x
  2. Step 2: Convert to fraction form
    28,125.46/38,814.69 = 15,549.94/x
  3. Step 3: Cross multiply
    28,125.46x = 38,814.69 × 15,549.94
  4. Step 4: Simplify right side
    28,125.46x = 603,566,100.62
  5. Step 5: Solve for x
    x = 603,566,100.62/28,125.46
  6. Step 6: Final answer
    x = 21,459.78

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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.