Home / 42,640.97-63,961.60-13,058.67

Finding the Fourth Proportional to 42,640.97, 63,961.60 and 13,058.67

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Solution

The fourth proportional to 42,640.97, 63,961.60 and 13,058.67 is: 19,588.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.97 : 63,961.60 = 13,058.67 : x
  2. Step 2: Convert to fraction form
    42,640.97/63,961.60 = 13,058.67/x
  3. Step 3: Cross multiply
    42,640.97x = 63,961.60 × 13,058.67
  4. Step 4: Simplify right side
    42,640.97x = 835,253,394.43
  5. Step 5: Solve for x
    x = 835,253,394.43/42,640.97
  6. Step 6: Final answer
    x = 19,588.05

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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.