Home / 42,348.57-63,513.74-12,760.29

Finding the Fourth Proportional to 42,348.57, 63,513.74 and 12,760.29

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Solution

The fourth proportional to 42,348.57, 63,513.74 and 12,760.29 is: 19,137.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,348.57 : 63,513.74 = 12,760.29 : x
  2. Step 2: Convert to fraction form
    42,348.57/63,513.74 = 12,760.29/x
  3. Step 3: Cross multiply
    42,348.57x = 63,513.74 × 12,760.29
  4. Step 4: Simplify right side
    42,348.57x = 810,453,677.58
  5. Step 5: Solve for x
    x = 810,453,677.58/42,348.57
  6. Step 6: Final answer
    x = 19,137.69

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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.