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Finding the Fourth Proportional to 25,685.94, 38,510.22 and 17,345.28

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Solution

The fourth proportional to 25,685.94, 38,510.22 and 17,345.28 is: 26,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.94 : 38,510.22 = 17,345.28 : x
  2. Step 2: Convert to fraction form
    25,685.94/38,510.22 = 17,345.28/x
  3. Step 3: Cross multiply
    25,685.94x = 38,510.22 × 17,345.28
  4. Step 4: Simplify right side
    25,685.94x = 667,970,548.76
  5. Step 5: Solve for x
    x = 667,970,548.76/25,685.94
  6. Step 6: Final answer
    x = 26,005.30

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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.