Home / 21,207.19-31,805.92-9,523.75

Finding the Fourth Proportional to 21,207.19, 31,805.92 and 9,523.75

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Solution

The fourth proportional to 21,207.19, 31,805.92 and 9,523.75 is: 14,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.19 : 31,805.92 = 9,523.75 : x
  2. Step 2: Convert to fraction form
    21,207.19/31,805.92 = 9,523.75/x
  3. Step 3: Cross multiply
    21,207.19x = 31,805.92 × 9,523.75
  4. Step 4: Simplify right side
    21,207.19x = 302,911,630.60
  5. Step 5: Solve for x
    x = 302,911,630.60/21,207.19
  6. Step 6: Final answer
    x = 14,283.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.