Home / 30,971.08-42,740.55-17,542

Finding the Fourth Proportional to 30,971.08, 42,740.55 and 17,542

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Solution

The fourth proportional to 30,971.08, 42,740.55 and 17,542 is: 24,208.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.08 : 42,740.55 = 17,542 : x
  2. Step 2: Convert to fraction form
    30,971.08/42,740.55 = 17,542/x
  3. Step 3: Cross multiply
    30,971.08x = 42,740.55 × 17,542
  4. Step 4: Simplify right side
    30,971.08x = 749,754,728.10
  5. Step 5: Solve for x
    x = 749,754,728.10/30,971.08
  6. Step 6: Final answer
    x = 24,208.22

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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.