Home / 28,262.22-39,001.95-15,687.06

Finding the Fourth Proportional to 28,262.22, 39,001.95 and 15,687.06

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Solution

The fourth proportional to 28,262.22, 39,001.95 and 15,687.06 is: 21,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.22 : 39,001.95 = 15,687.06 : x
  2. Step 2: Convert to fraction form
    28,262.22/39,001.95 = 15,687.06/x
  3. Step 3: Cross multiply
    28,262.22x = 39,001.95 × 15,687.06
  4. Step 4: Simplify right side
    28,262.22x = 611,825,929.77
  5. Step 5: Solve for x
    x = 611,825,929.77/28,262.22
  6. Step 6: Final answer
    x = 21,648.19

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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.