Home / 28,266.82-39,008.67-15,521.18

Finding the Fourth Proportional to 28,266.82, 39,008.67 and 15,521.18

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Solution

The fourth proportional to 28,266.82, 39,008.67 and 15,521.18 is: 21,419.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.82 : 39,008.67 = 15,521.18 : x
  2. Step 2: Convert to fraction form
    28,266.82/39,008.67 = 15,521.18/x
  3. Step 3: Cross multiply
    28,266.82x = 39,008.67 × 15,521.18
  4. Step 4: Simplify right side
    28,266.82x = 605,460,588.63
  5. Step 5: Solve for x
    x = 605,460,588.63/28,266.82
  6. Step 6: Final answer
    x = 21,419.48

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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.