Home / 42,418.46-63,628.50-12,836.18

Finding the Fourth Proportional to 42,418.46, 63,628.50 and 12,836.18

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Solution

The fourth proportional to 42,418.46, 63,628.50 and 12,836.18 is: 19,254.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.46 : 63,628.50 = 12,836.18 : x
  2. Step 2: Convert to fraction form
    42,418.46/63,628.50 = 12,836.18/x
  3. Step 3: Cross multiply
    42,418.46x = 63,628.50 × 12,836.18
  4. Step 4: Simplify right side
    42,418.46x = 816,746,879.13
  5. Step 5: Solve for x
    x = 816,746,879.13/42,418.46
  6. Step 6: Final answer
    x = 19,254.52

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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.