Home / 28,528.68-39,371.40-15,953.52

Finding the Fourth Proportional to 28,528.68, 39,371.40 and 15,953.52

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Solution

The fourth proportional to 28,528.68, 39,371.40 and 15,953.52 is: 22,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.68 : 39,371.40 = 15,953.52 : x
  2. Step 2: Convert to fraction form
    28,528.68/39,371.40 = 15,953.52/x
  3. Step 3: Cross multiply
    28,528.68x = 39,371.40 × 15,953.52
  4. Step 4: Simplify right side
    28,528.68x = 628,112,417.33
  5. Step 5: Solve for x
    x = 628,112,417.33/28,528.68
  6. Step 6: Final answer
    x = 22,016.88

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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.