Home / 22,579.42-31,162.51-13,631.98

Finding the Fourth Proportional to 22,579.42, 31,162.51 and 13,631.98

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Solution

The fourth proportional to 22,579.42, 31,162.51 and 13,631.98 is: 18,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.42 : 31,162.51 = 13,631.98 : x
  2. Step 2: Convert to fraction form
    22,579.42/31,162.51 = 13,631.98/x
  3. Step 3: Cross multiply
    22,579.42x = 31,162.51 × 13,631.98
  4. Step 4: Simplify right side
    22,579.42x = 424,806,713.07
  5. Step 5: Solve for x
    x = 424,806,713.07/22,579.42
  6. Step 6: Final answer
    x = 18,813.89

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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.