Home / 27,729.47-38,266.82-15,630.14

Finding the Fourth Proportional to 27,729.47, 38,266.82 and 15,630.14

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Solution

The fourth proportional to 27,729.47, 38,266.82 and 15,630.14 is: 21,569.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.47 : 38,266.82 = 15,630.14 : x
  2. Step 2: Convert to fraction form
    27,729.47/38,266.82 = 15,630.14/x
  3. Step 3: Cross multiply
    27,729.47x = 38,266.82 × 15,630.14
  4. Step 4: Simplify right side
    27,729.47x = 598,115,484.47
  5. Step 5: Solve for x
    x = 598,115,484.47/27,729.47
  6. Step 6: Final answer
    x = 21,569.67

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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.