Home / 30,002.08-45,003.12-23,418.40

Finding the Fourth Proportional to 30,002.08, 45,003.12 and 23,418.40

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Solution

The fourth proportional to 30,002.08, 45,003.12 and 23,418.40 is: 35,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.08 : 45,003.12 = 23,418.40 : x
  2. Step 2: Convert to fraction form
    30,002.08/45,003.12 = 23,418.40/x
  3. Step 3: Cross multiply
    30,002.08x = 45,003.12 × 23,418.40
  4. Step 4: Simplify right side
    30,002.08x = 1,053,901,065.41
  5. Step 5: Solve for x
    x = 1,053,901,065.41/30,002.08
  6. Step 6: Final answer
    x = 35,127.60

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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.