Home / 21,449.16-29,599.74-13,065.66

Finding the Fourth Proportional to 21,449.16, 29,599.74 and 13,065.66

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Solution

The fourth proportional to 21,449.16, 29,599.74 and 13,065.66 is: 18,030.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.16 : 29,599.74 = 13,065.66 : x
  2. Step 2: Convert to fraction form
    21,449.16/29,599.74 = 13,065.66/x
  3. Step 3: Cross multiply
    21,449.16x = 29,599.74 × 13,065.66
  4. Step 4: Simplify right side
    21,449.16x = 386,740,138.93
  5. Step 5: Solve for x
    x = 386,740,138.93/21,449.16
  6. Step 6: Final answer
    x = 18,030.55

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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.