Home / 28,026.30-38,639.10-23,228.28

Finding the Fourth Proportional to 28,026.30, 38,639.10 and 23,228.28

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Solution

The fourth proportional to 28,026.30, 38,639.10 and 23,228.28 is: 32,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026.30 : 38,639.10 = 23,228.28 : x
  2. Step 2: Convert to fraction form
    28,026.30/38,639.10 = 23,228.28/x
  3. Step 3: Cross multiply
    28,026.30x = 38,639.10 × 23,228.28
  4. Step 4: Simplify right side
    28,026.30x = 897,519,833.75
  5. Step 5: Solve for x
    x = 897,519,833.75/28,026.30
  6. Step 6: Final answer
    x = 32,024.20

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Half scale
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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.