Home / 30,934.12-42,729.78-23,720.26

Finding the Fourth Proportional to 30,934.12, 42,729.78 and 23,720.26

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Solution

The fourth proportional to 30,934.12, 42,729.78 and 23,720.26 is: 32,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.12 : 42,729.78 = 23,720.26 : x
  2. Step 2: Convert to fraction form
    30,934.12/42,729.78 = 23,720.26/x
  3. Step 3: Cross multiply
    30,934.12x = 42,729.78 × 23,720.26
  4. Step 4: Simplify right side
    30,934.12x = 1,013,561,491.34
  5. Step 5: Solve for x
    x = 1,013,561,491.34/30,934.12
  6. Step 6: Final answer
    x = 32,765.16

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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.