Home / 21,417.68-29,567.13-13,464.29

Finding the Fourth Proportional to 21,417.68, 29,567.13 and 13,464.29

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Solution

The fourth proportional to 21,417.68, 29,567.13 and 13,464.29 is: 18,587.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.68 : 29,567.13 = 13,464.29 : x
  2. Step 2: Convert to fraction form
    21,417.68/29,567.13 = 13,464.29/x
  3. Step 3: Cross multiply
    21,417.68x = 29,567.13 × 13,464.29
  4. Step 4: Simplify right side
    21,417.68x = 398,100,436.21
  5. Step 5: Solve for x
    x = 398,100,436.21/21,417.68
  6. Step 6: Final answer
    x = 18,587.47

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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.