Home / 28,208.20-38,927.22-15,632.95

Finding the Fourth Proportional to 28,208.20, 38,927.22 and 15,632.95

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Solution

The fourth proportional to 28,208.20, 38,927.22 and 15,632.95 is: 21,573.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.20 : 38,927.22 = 15,632.95 : x
  2. Step 2: Convert to fraction form
    28,208.20/38,927.22 = 15,632.95/x
  3. Step 3: Cross multiply
    28,208.20x = 38,927.22 × 15,632.95
  4. Step 4: Simplify right side
    28,208.20x = 608,547,283.90
  5. Step 5: Solve for x
    x = 608,547,283.90/28,208.20
  6. Step 6: Final answer
    x = 21,573.42

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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.