Home / 22,180.68-30,602.07-15,808.28

Finding the Fourth Proportional to 22,180.68, 30,602.07 and 15,808.28

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Solution

The fourth proportional to 22,180.68, 30,602.07 and 15,808.28 is: 21,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.68 : 30,602.07 = 15,808.28 : x
  2. Step 2: Convert to fraction form
    22,180.68/30,602.07 = 15,808.28/x
  3. Step 3: Cross multiply
    22,180.68x = 30,602.07 × 15,808.28
  4. Step 4: Simplify right side
    22,180.68x = 483,765,938.13
  5. Step 5: Solve for x
    x = 483,765,938.13/22,180.68
  6. Step 6: Final answer
    x = 21,810.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.