Home / 30,768.12-42,452.54-17,339.40

Finding the Fourth Proportional to 30,768.12, 42,452.54 and 17,339.40

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Solution

The fourth proportional to 30,768.12, 42,452.54 and 17,339.40 is: 23,924.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,768.12 : 42,452.54 = 17,339.40 : x
  2. Step 2: Convert to fraction form
    30,768.12/42,452.54 = 17,339.40/x
  3. Step 3: Cross multiply
    30,768.12x = 42,452.54 × 17,339.40
  4. Step 4: Simplify right side
    30,768.12x = 736,101,572.08
  5. Step 5: Solve for x
    x = 736,101,572.08/30,768.12
  6. Step 6: Final answer
    x = 23,924.16

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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.