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Finding the Fourth Proportional to 27,606.40, 38,096.80 and 15,031.16

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Solution

The fourth proportional to 27,606.40, 38,096.80 and 15,031.16 is: 20,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,606.40 : 38,096.80 = 15,031.16 : x
  2. Step 2: Convert to fraction form
    27,606.40/38,096.80 = 15,031.16/x
  3. Step 3: Cross multiply
    27,606.40x = 38,096.80 × 15,031.16
  4. Step 4: Simplify right side
    27,606.40x = 572,639,096.29
  5. Step 5: Solve for x
    x = 572,639,096.29/27,606.40
  6. Step 6: Final answer
    x = 20,742.98

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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.