Home / 39,780.77-59,671.23-10,198.71

Finding the Fourth Proportional to 39,780.77, 59,671.23 and 10,198.71

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Solution

The fourth proportional to 39,780.77, 59,671.23 and 10,198.71 is: 15,298.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.77 : 59,671.23 = 10,198.71 : x
  2. Step 2: Convert to fraction form
    39,780.77/59,671.23 = 10,198.71/x
  3. Step 3: Cross multiply
    39,780.77x = 59,671.23 × 10,198.71
  4. Step 4: Simplify right side
    39,780.77x = 608,569,589.24
  5. Step 5: Solve for x
    x = 608,569,589.24/39,780.77
  6. Step 6: Final answer
    x = 15,298.08

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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.