Home / 40,618.76-60,905.50-12,530.84

Finding the Fourth Proportional to 40,618.76, 60,905.50 and 12,530.84

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Solution

The fourth proportional to 40,618.76, 60,905.50 and 12,530.84 is: 18,789.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,618.76 : 60,905.50 = 12,530.84 : x
  2. Step 2: Convert to fraction form
    40,618.76/60,905.50 = 12,530.84/x
  3. Step 3: Cross multiply
    40,618.76x = 60,905.50 × 12,530.84
  4. Step 4: Simplify right side
    40,618.76x = 763,197,075.62
  5. Step 5: Solve for x
    x = 763,197,075.62/40,618.76
  6. Step 6: Final answer
    x = 18,789.28

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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.