Home / 27,880.53-38,464.18-15,937.46

Finding the Fourth Proportional to 27,880.53, 38,464.18 and 15,937.46

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Solution

The fourth proportional to 27,880.53, 38,464.18 and 15,937.46 is: 21,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,880.53 : 38,464.18 = 15,937.46 : x
  2. Step 2: Convert to fraction form
    27,880.53/38,464.18 = 15,937.46/x
  3. Step 3: Cross multiply
    27,880.53x = 38,464.18 × 15,937.46
  4. Step 4: Simplify right side
    27,880.53x = 613,021,058.17
  5. Step 5: Solve for x
    x = 613,021,058.17/27,880.53
  6. Step 6: Final answer
    x = 21,987.43

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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.