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Finding the Fourth Proportional to 25,776, 35,565.48 and 15,166.80

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Solution

The fourth proportional to 25,776, 35,565.48 and 15,166.80 is: 20,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,776 : 35,565.48 = 15,166.80 : x
  2. Step 2: Convert to fraction form
    25,776/35,565.48 = 15,166.80/x
  3. Step 3: Cross multiply
    25,776x = 35,565.48 × 15,166.80
  4. Step 4: Simplify right side
    25,776x = 539,414,522.06
  5. Step 5: Solve for x
    x = 539,414,522.06/25,776
  6. Step 6: Final answer
    x = 20,927.01

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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.