Home / 40,518.84-60,778.80-17,128.20

Finding the Fourth Proportional to 40,518.84, 60,778.80 and 17,128.20

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Solution

The fourth proportional to 40,518.84, 60,778.80 and 17,128.20 is: 25,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,518.84 : 60,778.80 = 17,128.20 : x
  2. Step 2: Convert to fraction form
    40,518.84/60,778.80 = 17,128.20/x
  3. Step 3: Cross multiply
    40,518.84x = 60,778.80 × 17,128.20
  4. Step 4: Simplify right side
    40,518.84x = 1,041,031,442.16
  5. Step 5: Solve for x
    x = 1,041,031,442.16/40,518.84
  6. Step 6: Final answer
    x = 25,692.53

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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.