Home / 30,478.17-45,720.33-11,498.04

Finding the Fourth Proportional to 30,478.17, 45,720.33 and 11,498.04

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Solution

The fourth proportional to 30,478.17, 45,720.33 and 11,498.04 is: 17,248.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,478.17 : 45,720.33 = 11,498.04 : x
  2. Step 2: Convert to fraction form
    30,478.17/45,720.33 = 11,498.04/x
  3. Step 3: Cross multiply
    30,478.17x = 45,720.33 × 11,498.04
  4. Step 4: Simplify right side
    30,478.17x = 525,694,317.13
  5. Step 5: Solve for x
    x = 525,694,317.13/30,478.17
  6. Step 6: Final answer
    x = 17,248.22

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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.