Home / 40,871.52-61,274.18-12,777.12

Finding the Fourth Proportional to 40,871.52, 61,274.18 and 12,777.12

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Solution

The fourth proportional to 40,871.52, 61,274.18 and 12,777.12 is: 19,155.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,871.52 : 61,274.18 = 12,777.12 : x
  2. Step 2: Convert to fraction form
    40,871.52/61,274.18 = 12,777.12/x
  3. Step 3: Cross multiply
    40,871.52x = 61,274.18 × 12,777.12
  4. Step 4: Simplify right side
    40,871.52x = 782,907,582.70
  5. Step 5: Solve for x
    x = 782,907,582.70/40,871.52
  6. Step 6: Final answer
    x = 19,155.33

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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.