Home / 28,046.24-38,718.09-21,658.49

Finding the Fourth Proportional to 28,046.24, 38,718.09 and 21,658.49

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Solution

The fourth proportional to 28,046.24, 38,718.09 and 21,658.49 is: 29,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.24 : 38,718.09 = 21,658.49 : x
  2. Step 2: Convert to fraction form
    28,046.24/38,718.09 = 21,658.49/x
  3. Step 3: Cross multiply
    28,046.24x = 38,718.09 × 21,658.49
  4. Step 4: Simplify right side
    28,046.24x = 838,575,268.29
  5. Step 5: Solve for x
    x = 838,575,268.29/28,046.24
  6. Step 6: Final answer
    x = 29,899.74

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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.