Home / 40,402.15-60,603.15-18,189.57

Finding the Fourth Proportional to 40,402.15, 60,603.15 and 18,189.57

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Solution

The fourth proportional to 40,402.15, 60,603.15 and 18,189.57 is: 27,284.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,402.15 : 60,603.15 = 18,189.57 : x
  2. Step 2: Convert to fraction form
    40,402.15/60,603.15 = 18,189.57/x
  3. Step 3: Cross multiply
    40,402.15x = 60,603.15 × 18,189.57
  4. Step 4: Simplify right side
    40,402.15x = 1,102,345,239.15
  5. Step 5: Solve for x
    x = 1,102,345,239.15/40,402.15
  6. Step 6: Final answer
    x = 27,284.32

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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.