Home / 28,235.72-38,972.94-17,619.08

Finding the Fourth Proportional to 28,235.72, 38,972.94 and 17,619.08

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Solution

The fourth proportional to 28,235.72, 38,972.94 and 17,619.08 is: 24,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.72 : 38,972.94 = 17,619.08 : x
  2. Step 2: Convert to fraction form
    28,235.72/38,972.94 = 17,619.08/x
  3. Step 3: Cross multiply
    28,235.72x = 38,972.94 × 17,619.08
  4. Step 4: Simplify right side
    28,235.72x = 686,667,347.70
  5. Step 5: Solve for x
    x = 686,667,347.70/28,235.72
  6. Step 6: Final answer
    x = 24,319.10

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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.