Home / 27,740.14-38,276.90-15,803.70

Finding the Fourth Proportional to 27,740.14, 38,276.90 and 15,803.70

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Solution

The fourth proportional to 27,740.14, 38,276.90 and 15,803.70 is: 21,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,740.14 : 38,276.90 = 15,803.70 : x
  2. Step 2: Convert to fraction form
    27,740.14/38,276.90 = 15,803.70/x
  3. Step 3: Cross multiply
    27,740.14x = 38,276.90 × 15,803.70
  4. Step 4: Simplify right side
    27,740.14x = 604,916,644.53
  5. Step 5: Solve for x
    x = 604,916,644.53/27,740.14
  6. Step 6: Final answer
    x = 21,806.55

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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.