Home / 28,262.04-39,001.74-15,686.82

Finding the Fourth Proportional to 28,262.04, 39,001.74 and 15,686.82

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Solution

The fourth proportional to 28,262.04, 39,001.74 and 15,686.82 is: 21,647.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.04 : 39,001.74 = 15,686.82 : x
  2. Step 2: Convert to fraction form
    28,262.04/39,001.74 = 15,686.82/x
  3. Step 3: Cross multiply
    28,262.04x = 39,001.74 × 15,686.82
  4. Step 4: Simplify right side
    28,262.04x = 611,813,275.07
  5. Step 5: Solve for x
    x = 611,813,275.07/28,262.04
  6. Step 6: Final answer
    x = 21,647.88

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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.