Home / 21,989.39-32,988.71-7,197.16

Finding the Fourth Proportional to 21,989.39, 32,988.71 and 7,197.16

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Solution

The fourth proportional to 21,989.39, 32,988.71 and 7,197.16 is: 10,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989.39 : 32,988.71 = 7,197.16 : x
  2. Step 2: Convert to fraction form
    21,989.39/32,988.71 = 7,197.16/x
  3. Step 3: Cross multiply
    21,989.39x = 32,988.71 × 7,197.16
  4. Step 4: Simplify right side
    21,989.39x = 237,425,024.06
  5. Step 5: Solve for x
    x = 237,425,024.06/21,989.39
  6. Step 6: Final answer
    x = 10,797.25

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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.