Home / 22,690.59-31,285.77-18,919.23

Finding the Fourth Proportional to 22,690.59, 31,285.77 and 18,919.23

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Solution

The fourth proportional to 22,690.59, 31,285.77 and 18,919.23 is: 26,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.59 : 31,285.77 = 18,919.23 : x
  2. Step 2: Convert to fraction form
    22,690.59/31,285.77 = 18,919.23/x
  3. Step 3: Cross multiply
    22,690.59x = 31,285.77 × 18,919.23
  4. Step 4: Simplify right side
    22,690.59x = 591,902,678.36
  5. Step 5: Solve for x
    x = 591,902,678.36/22,690.59
  6. Step 6: Final answer
    x = 26,085.82

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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.