Home / 22,690.42-31,313.17-13,259.38

Finding the Fourth Proportional to 22,690.42, 31,313.17 and 13,259.38

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Solution

The fourth proportional to 22,690.42, 31,313.17 and 13,259.38 is: 18,298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.42 : 31,313.17 = 13,259.38 : x
  2. Step 2: Convert to fraction form
    22,690.42/31,313.17 = 13,259.38/x
  3. Step 3: Cross multiply
    22,690.42x = 31,313.17 × 13,259.38
  4. Step 4: Simplify right side
    22,690.42x = 415,193,220.03
  5. Step 5: Solve for x
    x = 415,193,220.03/22,690.42
  6. Step 6: Final answer
    x = 18,298.17

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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.