Home / 40,657.69-56,109.36-25,138.72

Finding the Fourth Proportional to 40,657.69, 56,109.36 and 25,138.72

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Solution

The fourth proportional to 40,657.69, 56,109.36 and 25,138.72 is: 34,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,657.69 : 56,109.36 = 25,138.72 : x
  2. Step 2: Convert to fraction form
    40,657.69/56,109.36 = 25,138.72/x
  3. Step 3: Cross multiply
    40,657.69x = 56,109.36 × 25,138.72
  4. Step 4: Simplify right side
    40,657.69x = 1,410,517,490.42
  5. Step 5: Solve for x
    x = 1,410,517,490.42/40,657.69
  6. Step 6: Final answer
    x = 34,692.51

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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.