Home / 21,488.36-29,655.12-12,058.28

Finding the Fourth Proportional to 21,488.36, 29,655.12 and 12,058.28

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Solution

The fourth proportional to 21,488.36, 29,655.12 and 12,058.28 is: 16,641.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.36 : 29,655.12 = 12,058.28 : x
  2. Step 2: Convert to fraction form
    21,488.36/29,655.12 = 12,058.28/x
  3. Step 3: Cross multiply
    21,488.36x = 29,655.12 × 12,058.28
  4. Step 4: Simplify right side
    21,488.36x = 357,589,740.39
  5. Step 5: Solve for x
    x = 357,589,740.39/21,488.36
  6. Step 6: Final answer
    x = 16,641.09

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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.