Home / 28,240.24-38,972.28-15,494

Finding the Fourth Proportional to 28,240.24, 38,972.28 and 15,494

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Solution

The fourth proportional to 28,240.24, 38,972.28 and 15,494 is: 21,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.24 : 38,972.28 = 15,494 : x
  2. Step 2: Convert to fraction form
    28,240.24/38,972.28 = 15,494/x
  3. Step 3: Cross multiply
    28,240.24x = 38,972.28 × 15,494
  4. Step 4: Simplify right side
    28,240.24x = 603,836,506.32
  5. Step 5: Solve for x
    x = 603,836,506.32/28,240.24
  6. Step 6: Final answer
    x = 21,382.13

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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.