Home / 21,352.66-29,464.43-12,398.41

Finding the Fourth Proportional to 21,352.66, 29,464.43 and 12,398.41

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Solution

The fourth proportional to 21,352.66, 29,464.43 and 12,398.41 is: 17,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.66 : 29,464.43 = 12,398.41 : x
  2. Step 2: Convert to fraction form
    21,352.66/29,464.43 = 12,398.41/x
  3. Step 3: Cross multiply
    21,352.66x = 29,464.43 × 12,398.41
  4. Step 4: Simplify right side
    21,352.66x = 365,312,151.38
  5. Step 5: Solve for x
    x = 365,312,151.38/21,352.66
  6. Step 6: Final answer
    x = 17,108.51

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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.