Home / 40,348.32-60,552-20,643.36

Finding the Fourth Proportional to 40,348.32, 60,552 and 20,643.36

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Solution

The fourth proportional to 40,348.32, 60,552 and 20,643.36 is: 30,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,348.32 : 60,552 = 20,643.36 : x
  2. Step 2: Convert to fraction form
    40,348.32/60,552 = 20,643.36/x
  3. Step 3: Cross multiply
    40,348.32x = 60,552 × 20,643.36
  4. Step 4: Simplify right side
    40,348.32x = 1,249,996,734.72
  5. Step 5: Solve for x
    x = 1,249,996,734.72/40,348.32
  6. Step 6: Final answer
    x = 30,980.14

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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.