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Finding the Fourth Proportional to 25,378.52, 35,000.91 and 19,020.02

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Solution

The fourth proportional to 25,378.52, 35,000.91 and 19,020.02 is: 26,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,378.52 : 35,000.91 = 19,020.02 : x
  2. Step 2: Convert to fraction form
    25,378.52/35,000.91 = 19,020.02/x
  3. Step 3: Cross multiply
    25,378.52x = 35,000.91 × 19,020.02
  4. Step 4: Simplify right side
    25,378.52x = 665,717,833.21
  5. Step 5: Solve for x
    x = 665,717,833.21/25,378.52
  6. Step 6: Final answer
    x = 26,231.55

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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.