Home / 28,084.70-38,751.02-16,440.74

Finding the Fourth Proportional to 28,084.70, 38,751.02 and 16,440.74

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Solution

The fourth proportional to 28,084.70, 38,751.02 and 16,440.74 is: 22,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.70 : 38,751.02 = 16,440.74 : x
  2. Step 2: Convert to fraction form
    28,084.70/38,751.02 = 16,440.74/x
  3. Step 3: Cross multiply
    28,084.70x = 38,751.02 × 16,440.74
  4. Step 4: Simplify right side
    28,084.70x = 637,095,168.60
  5. Step 5: Solve for x
    x = 637,095,168.60/28,084.70
  6. Step 6: Final answer
    x = 22,684.78

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Half scale
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Double 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.