Home / 25,440.30-35,124.66-15,894.72

Finding the Fourth Proportional to 25,440.30, 35,124.66 and 15,894.72

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Solution

The fourth proportional to 25,440.30, 35,124.66 and 15,894.72 is: 21,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,440.30 : 35,124.66 = 15,894.72 : x
  2. Step 2: Convert to fraction form
    25,440.30/35,124.66 = 15,894.72/x
  3. Step 3: Cross multiply
    25,440.30x = 35,124.66 × 15,894.72
  4. Step 4: Simplify right side
    25,440.30x = 558,296,635.80
  5. Step 5: Solve for x
    x = 558,296,635.80/25,440.30
  6. Step 6: Final answer
    x = 21,945.36

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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.