Home / 28,036.20-38,690.02-15,460.84

Finding the Fourth Proportional to 28,036.20, 38,690.02 and 15,460.84

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Solution

The fourth proportional to 28,036.20, 38,690.02 and 15,460.84 is: 21,335.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.20 : 38,690.02 = 15,460.84 : x
  2. Step 2: Convert to fraction form
    28,036.20/38,690.02 = 15,460.84/x
  3. Step 3: Cross multiply
    28,036.20x = 38,690.02 × 15,460.84
  4. Step 4: Simplify right side
    28,036.20x = 598,180,208.82
  5. Step 5: Solve for x
    x = 598,180,208.82/28,036.20
  6. Step 6: Final answer
    x = 21,335.99

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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.