Home / 21,681.43-32,521.63-9,994.65

Finding the Fourth Proportional to 21,681.43, 32,521.63 and 9,994.65

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Solution

The fourth proportional to 21,681.43, 32,521.63 and 9,994.65 is: 14,991.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.43 : 32,521.63 = 9,994.65 : x
  2. Step 2: Convert to fraction form
    21,681.43/32,521.63 = 9,994.65/x
  3. Step 3: Cross multiply
    21,681.43x = 32,521.63 × 9,994.65
  4. Step 4: Simplify right side
    21,681.43x = 325,042,309.28
  5. Step 5: Solve for x
    x = 325,042,309.28/21,681.43
  6. Step 6: Final answer
    x = 14,991.74

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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.