Home / 28,701.71-39,608.08-15,954.56

Finding the Fourth Proportional to 28,701.71, 39,608.08 and 15,954.56

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Solution

The fourth proportional to 28,701.71, 39,608.08 and 15,954.56 is: 22,017.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,701.71 : 39,608.08 = 15,954.56 : x
  2. Step 2: Convert to fraction form
    28,701.71/39,608.08 = 15,954.56/x
  3. Step 3: Cross multiply
    28,701.71x = 39,608.08 × 15,954.56
  4. Step 4: Simplify right side
    28,701.71x = 631,929,488.84
  5. Step 5: Solve for x
    x = 631,929,488.84/28,701.71
  6. Step 6: Final answer
    x = 22,017.14

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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.