Home / 30,102.16-45,107.88-26,821.12

Finding the Fourth Proportional to 30,102.16, 45,107.88 and 26,821.12

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Solution

The fourth proportional to 30,102.16, 45,107.88 and 26,821.12 is: 40,191.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,102.16 : 45,107.88 = 26,821.12 : x
  2. Step 2: Convert to fraction form
    30,102.16/45,107.88 = 26,821.12/x
  3. Step 3: Cross multiply
    30,102.16x = 45,107.88 × 26,821.12
  4. Step 4: Simplify right side
    30,102.16x = 1,209,843,862.43
  5. Step 5: Solve for x
    x = 1,209,843,862.43/30,102.16
  6. Step 6: Final answer
    x = 40,191.26

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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.