Home / 31,027.04-42,817.08-16,879.87

Finding the Fourth Proportional to 31,027.04, 42,817.08 and 16,879.87

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Solution

The fourth proportional to 31,027.04, 42,817.08 and 16,879.87 is: 23,294.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.04 : 42,817.08 = 16,879.87 : x
  2. Step 2: Convert to fraction form
    31,027.04/42,817.08 = 16,879.87/x
  3. Step 3: Cross multiply
    31,027.04x = 42,817.08 × 16,879.87
  4. Step 4: Simplify right side
    31,027.04x = 722,746,744.18
  5. Step 5: Solve for x
    x = 722,746,744.18/31,027.04
  6. Step 6: Final answer
    x = 23,294.09

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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.