Home / 42,616.80-63,919.60-13,037.60

Finding the Fourth Proportional to 42,616.80, 63,919.60 and 13,037.60

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Solution

The fourth proportional to 42,616.80, 63,919.60 and 13,037.60 is: 19,554.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,616.80 : 63,919.60 = 13,037.60 : x
  2. Step 2: Convert to fraction form
    42,616.80/63,919.60 = 13,037.60/x
  3. Step 3: Cross multiply
    42,616.80x = 63,919.60 × 13,037.60
  4. Step 4: Simplify right side
    42,616.80x = 833,358,176.96
  5. Step 5: Solve for x
    x = 833,358,176.96/42,616.80
  6. Step 6: Final answer
    x = 19,554.69

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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.