Home / 21,401.04-32,115.42-11,547.12

Finding the Fourth Proportional to 21,401.04, 32,115.42 and 11,547.12

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Solution

The fourth proportional to 21,401.04, 32,115.42 and 11,547.12 is: 17,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.04 : 32,115.42 = 11,547.12 : x
  2. Step 2: Convert to fraction form
    21,401.04/32,115.42 = 11,547.12/x
  3. Step 3: Cross multiply
    21,401.04x = 32,115.42 × 11,547.12
  4. Step 4: Simplify right side
    21,401.04x = 370,840,608.59
  5. Step 5: Solve for x
    x = 370,840,608.59/21,401.04
  6. Step 6: Final answer
    x = 17,328.16

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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.