Home / 38,288.10-52,838.02-21,520.74

Finding the Fourth Proportional to 38,288.10, 52,838.02 and 21,520.74

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Solution

The fourth proportional to 38,288.10, 52,838.02 and 21,520.74 is: 29,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,288.10 : 52,838.02 = 21,520.74 : x
  2. Step 2: Convert to fraction form
    38,288.10/52,838.02 = 21,520.74/x
  3. Step 3: Cross multiply
    38,288.10x = 52,838.02 × 21,520.74
  4. Step 4: Simplify right side
    38,288.10x = 1,137,113,290.53
  5. Step 5: Solve for x
    x = 1,137,113,290.53/38,288.10
  6. Step 6: Final answer
    x = 29,698.87

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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.