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Finding the Fourth Proportional to 25,656.88, 35,405.76 and 15,045.88

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Solution

The fourth proportional to 25,656.88, 35,405.76 and 15,045.88 is: 20,762.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,656.88 : 35,405.76 = 15,045.88 : x
  2. Step 2: Convert to fraction form
    25,656.88/35,405.76 = 15,045.88/x
  3. Step 3: Cross multiply
    25,656.88x = 35,405.76 × 15,045.88
  4. Step 4: Simplify right side
    25,656.88x = 532,710,816.27
  5. Step 5: Solve for x
    x = 532,710,816.27/25,656.88
  6. Step 6: Final answer
    x = 20,762.88

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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.