Home / 27,631.06-38,130.95-15,694.49

Finding the Fourth Proportional to 27,631.06, 38,130.95 and 15,694.49

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Solution

The fourth proportional to 27,631.06, 38,130.95 and 15,694.49 is: 21,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.06 : 38,130.95 = 15,694.49 : x
  2. Step 2: Convert to fraction form
    27,631.06/38,130.95 = 15,694.49/x
  3. Step 3: Cross multiply
    27,631.06x = 38,130.95 × 15,694.49
  4. Step 4: Simplify right side
    27,631.06x = 598,445,948.03
  5. Step 5: Solve for x
    x = 598,445,948.03/27,631.06
  6. Step 6: Final answer
    x = 21,658.45

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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.