Home / 25,479.63-38,243.70-15,638.13

Finding the Fourth Proportional to 25,479.63, 38,243.70 and 15,638.13

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Solution

The fourth proportional to 25,479.63, 38,243.70 and 15,638.13 is: 23,472.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,479.63 : 38,243.70 = 15,638.13 : x
  2. Step 2: Convert to fraction form
    25,479.63/38,243.70 = 15,638.13/x
  3. Step 3: Cross multiply
    25,479.63x = 38,243.70 × 15,638.13
  4. Step 4: Simplify right side
    25,479.63x = 598,059,952.28
  5. Step 5: Solve for x
    x = 598,059,952.28/25,479.63
  6. Step 6: Final answer
    x = 23,472.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.