Home / 21,050.15-29,058.65-13,884.28

Finding the Fourth Proportional to 21,050.15, 29,058.65 and 13,884.28

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Solution

The fourth proportional to 21,050.15, 29,058.65 and 13,884.28 is: 19,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.15 : 29,058.65 = 13,884.28 : x
  2. Step 2: Convert to fraction form
    21,050.15/29,058.65 = 13,884.28/x
  3. Step 3: Cross multiply
    21,050.15x = 29,058.65 × 13,884.28
  4. Step 4: Simplify right side
    21,050.15x = 403,458,343.02
  5. Step 5: Solve for x
    x = 403,458,343.02/21,050.15
  6. Step 6: Final answer
    x = 19,166.54

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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.