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Finding the Fourth Proportional to 25,829, 35,638.52 and 15,214.76

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Solution

The fourth proportional to 25,829, 35,638.52 and 15,214.76 is: 20,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,829 : 35,638.52 = 15,214.76 : x
  2. Step 2: Convert to fraction form
    25,829/35,638.52 = 15,214.76/x
  3. Step 3: Cross multiply
    25,829x = 35,638.52 × 15,214.76
  4. Step 4: Simplify right side
    25,829x = 542,231,528.56
  5. Step 5: Solve for x
    x = 542,231,528.56/25,829
  6. Step 6: Final answer
    x = 20,993.13

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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.