Home / 39,875.20-55,017.84-25,711

Finding the Fourth Proportional to 39,875.20, 55,017.84 and 25,711

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Solution

The fourth proportional to 39,875.20, 55,017.84 and 25,711 is: 35,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,875.20 : 55,017.84 = 25,711 : x
  2. Step 2: Convert to fraction form
    39,875.20/55,017.84 = 25,711/x
  3. Step 3: Cross multiply
    39,875.20x = 55,017.84 × 25,711
  4. Step 4: Simplify right side
    39,875.20x = 1,414,563,684.24
  5. Step 5: Solve for x
    x = 1,414,563,684.24/39,875.20
  6. Step 6: Final answer
    x = 35,474.77

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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.