Home / 31,027.08-42,817.12-16,879.93

Finding the Fourth Proportional to 31,027.08, 42,817.12 and 16,879.93

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Solution

The fourth proportional to 31,027.08, 42,817.12 and 16,879.93 is: 23,294.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.08 : 42,817.12 = 16,879.93 : x
  2. Step 2: Convert to fraction form
    31,027.08/42,817.12 = 16,879.93/x
  3. Step 3: Cross multiply
    31,027.08x = 42,817.12 × 16,879.93
  4. Step 4: Simplify right side
    31,027.08x = 722,749,988.40
  5. Step 5: Solve for x
    x = 722,749,988.40/31,027.08
  6. Step 6: Final answer
    x = 23,294.17

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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.