Home / 30,440.36-45,594.12-18,718.04

Finding the Fourth Proportional to 30,440.36, 45,594.12 and 18,718.04

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Solution

The fourth proportional to 30,440.36, 45,594.12 and 18,718.04 is: 28,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.36 : 45,594.12 = 18,718.04 : x
  2. Step 2: Convert to fraction form
    30,440.36/45,594.12 = 18,718.04/x
  3. Step 3: Cross multiply
    30,440.36x = 45,594.12 × 18,718.04
  4. Step 4: Simplify right side
    30,440.36x = 853,432,561.92
  5. Step 5: Solve for x
    x = 853,432,561.92/30,440.36
  6. Step 6: Final answer
    x = 28,036.22

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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.