Home / 42,640.46-63,960.85-13,058.18

Finding the Fourth Proportional to 42,640.46, 63,960.85 and 13,058.18

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Solution

The fourth proportional to 42,640.46, 63,960.85 and 13,058.18 is: 19,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.46 : 63,960.85 = 13,058.18 : x
  2. Step 2: Convert to fraction form
    42,640.46/63,960.85 = 13,058.18/x
  3. Step 3: Cross multiply
    42,640.46x = 63,960.85 × 13,058.18
  4. Step 4: Simplify right side
    42,640.46x = 835,212,292.25
  5. Step 5: Solve for x
    x = 835,212,292.25/42,640.46
  6. Step 6: Final answer
    x = 19,587.32

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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.