Home / 38,276.94-52,821.12-21,280.74

Finding the Fourth Proportional to 38,276.94, 52,821.12 and 21,280.74

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Solution

The fourth proportional to 38,276.94, 52,821.12 and 21,280.74 is: 29,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,276.94 : 52,821.12 = 21,280.74 : x
  2. Step 2: Convert to fraction form
    38,276.94/52,821.12 = 21,280.74/x
  3. Step 3: Cross multiply
    38,276.94x = 52,821.12 × 21,280.74
  4. Step 4: Simplify right side
    38,276.94x = 1,124,072,521.23
  5. Step 5: Solve for x
    x = 1,124,072,521.23/38,276.94
  6. Step 6: Final answer
    x = 29,366.83

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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.