Home / 21,643.13-29,862.37-14,926.61

Finding the Fourth Proportional to 21,643.13, 29,862.37 and 14,926.61

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Solution

The fourth proportional to 21,643.13, 29,862.37 and 14,926.61 is: 20,595.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.13 : 29,862.37 = 14,926.61 : x
  2. Step 2: Convert to fraction form
    21,643.13/29,862.37 = 14,926.61/x
  3. Step 3: Cross multiply
    21,643.13x = 29,862.37 × 14,926.61
  4. Step 4: Simplify right side
    21,643.13x = 445,743,988.01
  5. Step 5: Solve for x
    x = 445,743,988.01/21,643.13
  6. Step 6: Final answer
    x = 20,595.17

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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.