Home / 42,640.96-63,961.60-13,058.68

Finding the Fourth Proportional to 42,640.96, 63,961.60 and 13,058.68

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Solution

The fourth proportional to 42,640.96, 63,961.60 and 13,058.68 is: 19,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.96 : 63,961.60 = 13,058.68 : x
  2. Step 2: Convert to fraction form
    42,640.96/63,961.60 = 13,058.68/x
  3. Step 3: Cross multiply
    42,640.96x = 63,961.60 × 13,058.68
  4. Step 4: Simplify right side
    42,640.96x = 835,254,066.69
  5. Step 5: Solve for x
    x = 835,254,066.69/42,640.96
  6. Step 6: Final answer
    x = 19,588.07

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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.