Home / 30,996.45-42,776-17,567.26

Finding the Fourth Proportional to 30,996.45, 42,776 and 17,567.26

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Solution

The fourth proportional to 30,996.45, 42,776 and 17,567.26 is: 24,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,996.45 : 42,776 = 17,567.26 : x
  2. Step 2: Convert to fraction form
    30,996.45/42,776 = 17,567.26/x
  3. Step 3: Cross multiply
    30,996.45x = 42,776 × 17,567.26
  4. Step 4: Simplify right side
    30,996.45x = 751,457,113.76
  5. Step 5: Solve for x
    x = 751,457,113.76/30,996.45
  6. Step 6: Final answer
    x = 24,243.33

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1.5x scale

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.