Home / 28,240.93-38,972.46-15,494.19

Finding the Fourth Proportional to 28,240.93, 38,972.46 and 15,494.19

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Solution

The fourth proportional to 28,240.93, 38,972.46 and 15,494.19 is: 21,381.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.93 : 38,972.46 = 15,494.19 : x
  2. Step 2: Convert to fraction form
    28,240.93/38,972.46 = 15,494.19/x
  3. Step 3: Cross multiply
    28,240.93x = 38,972.46 × 15,494.19
  4. Step 4: Simplify right side
    28,240.93x = 603,846,700.01
  5. Step 5: Solve for x
    x = 603,846,700.01/28,240.93
  6. Step 6: Final answer
    x = 21,381.97

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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.