Home / 27,881.02-38,464.86-15,937.95

Finding the Fourth Proportional to 27,881.02, 38,464.86 and 15,937.95

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Solution

The fourth proportional to 27,881.02, 38,464.86 and 15,937.95 is: 21,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.02 : 38,464.86 = 15,937.95 : x
  2. Step 2: Convert to fraction form
    27,881.02/38,464.86 = 15,937.95/x
  3. Step 3: Cross multiply
    27,881.02x = 38,464.86 × 15,937.95
  4. Step 4: Simplify right side
    27,881.02x = 613,051,015.44
  5. Step 5: Solve for x
    x = 613,051,015.44/27,881.02
  6. Step 6: Final answer
    x = 21,988.11

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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.