Home / 21,567.57-32,351.35-9,880.79

Finding the Fourth Proportional to 21,567.57, 32,351.35 and 9,880.79

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Solution

The fourth proportional to 21,567.57, 32,351.35 and 9,880.79 is: 14,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.57 : 32,351.35 = 9,880.79 : x
  2. Step 2: Convert to fraction form
    21,567.57/32,351.35 = 9,880.79/x
  3. Step 3: Cross multiply
    21,567.57x = 32,351.35 × 9,880.79
  4. Step 4: Simplify right side
    21,567.57x = 319,656,727.63
  5. Step 5: Solve for x
    x = 319,656,727.63/21,567.57
  6. Step 6: Final answer
    x = 14,821.18

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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.