Home / 31,215.66-43,077.75-17,068.49

Finding the Fourth Proportional to 31,215.66, 43,077.75 and 17,068.49

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Solution

The fourth proportional to 31,215.66, 43,077.75 and 17,068.49 is: 23,554.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.66 : 43,077.75 = 17,068.49 : x
  2. Step 2: Convert to fraction form
    31,215.66/43,077.75 = 17,068.49/x
  3. Step 3: Cross multiply
    31,215.66x = 43,077.75 × 17,068.49
  4. Step 4: Simplify right side
    31,215.66x = 735,272,145.10
  5. Step 5: Solve for x
    x = 735,272,145.10/31,215.66
  6. Step 6: Final answer
    x = 23,554.59

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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.