Home / 30,568.16-42,186.08-17,140.28

Finding the Fourth Proportional to 30,568.16, 42,186.08 and 17,140.28

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Solution

The fourth proportional to 30,568.16, 42,186.08 and 17,140.28 is: 23,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,568.16 : 42,186.08 = 17,140.28 : x
  2. Step 2: Convert to fraction form
    30,568.16/42,186.08 = 17,140.28/x
  3. Step 3: Cross multiply
    30,568.16x = 42,186.08 × 17,140.28
  4. Step 4: Simplify right side
    30,568.16x = 723,081,223.30
  5. Step 5: Solve for x
    x = 723,081,223.30/30,568.16
  6. Step 6: Final answer
    x = 23,654.72

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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.