Home / 30,971.19-42,743.10-17,543.01

Finding the Fourth Proportional to 30,971.19, 42,743.10 and 17,543.01

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Solution

The fourth proportional to 30,971.19, 42,743.10 and 17,543.01 is: 24,210.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.19 : 42,743.10 = 17,543.01 : x
  2. Step 2: Convert to fraction form
    30,971.19/42,743.10 = 17,543.01/x
  3. Step 3: Cross multiply
    30,971.19x = 42,743.10 × 17,543.01
  4. Step 4: Simplify right side
    30,971.19x = 749,842,630.73
  5. Step 5: Solve for x
    x = 749,842,630.73/30,971.19
  6. Step 6: Final answer
    x = 24,210.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.