Home / 27,631.08-38,130.98-15,694.52

Finding the Fourth Proportional to 27,631.08, 38,130.98 and 15,694.52

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Solution

The fourth proportional to 27,631.08, 38,130.98 and 15,694.52 is: 21,658.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.08 : 38,130.98 = 15,694.52 : x
  2. Step 2: Convert to fraction form
    27,631.08/38,130.98 = 15,694.52/x
  3. Step 3: Cross multiply
    27,631.08x = 38,130.98 × 15,694.52
  4. Step 4: Simplify right side
    27,631.08x = 598,447,159.10
  5. Step 5: Solve for x
    x = 598,447,159.10/27,631.08
  6. Step 6: Final answer
    x = 21,658.48

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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.