Home / 28,036.17-38,693.01-17,278.88

Finding the Fourth Proportional to 28,036.17, 38,693.01 and 17,278.88

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Solution

The fourth proportional to 28,036.17, 38,693.01 and 17,278.88 is: 23,846.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.17 : 38,693.01 = 17,278.88 : x
  2. Step 2: Convert to fraction form
    28,036.17/38,693.01 = 17,278.88/x
  3. Step 3: Cross multiply
    28,036.17x = 38,693.01 × 17,278.88
  4. Step 4: Simplify right side
    28,036.17x = 668,571,683.16
  5. Step 5: Solve for x
    x = 668,571,683.16/28,036.17
  6. Step 6: Final answer
    x = 23,846.76

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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.