Home / 27,690.15-38,208.56-15,752.91

Finding the Fourth Proportional to 27,690.15, 38,208.56 and 15,752.91

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Solution

The fourth proportional to 27,690.15, 38,208.56 and 15,752.91 is: 21,736.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,690.15 : 38,208.56 = 15,752.91 : x
  2. Step 2: Convert to fraction form
    27,690.15/38,208.56 = 15,752.91/x
  3. Step 3: Cross multiply
    27,690.15x = 38,208.56 × 15,752.91
  4. Step 4: Simplify right side
    27,690.15x = 601,895,928.15
  5. Step 5: Solve for x
    x = 601,895,928.15/27,690.15
  6. Step 6: Final answer
    x = 21,736.82

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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.