Home / 42,640.47-63,960.85-13,058.17

Finding the Fourth Proportional to 42,640.47, 63,960.85 and 13,058.17

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Solution

The fourth proportional to 42,640.47, 63,960.85 and 13,058.17 is: 19,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.47 : 63,960.85 = 13,058.17 : x
  2. Step 2: Convert to fraction form
    42,640.47/63,960.85 = 13,058.17/x
  3. Step 3: Cross multiply
    42,640.47x = 63,960.85 × 13,058.17
  4. Step 4: Simplify right side
    42,640.47x = 835,211,652.64
  5. Step 5: Solve for x
    x = 835,211,652.64/42,640.47
  6. Step 6: Final answer
    x = 19,587.30

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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.