Home / 21,058.88-29,064.96-12,561.53

Finding the Fourth Proportional to 21,058.88, 29,064.96 and 12,561.53

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Solution

The fourth proportional to 21,058.88, 29,064.96 and 12,561.53 is: 17,337.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.88 : 29,064.96 = 12,561.53 : x
  2. Step 2: Convert to fraction form
    21,058.88/29,064.96 = 12,561.53/x
  3. Step 3: Cross multiply
    21,058.88x = 29,064.96 × 12,561.53
  4. Step 4: Simplify right side
    21,058.88x = 365,100,221.66
  5. Step 5: Solve for x
    x = 365,100,221.66/21,058.88
  6. Step 6: Final answer
    x = 17,337.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.