Home / 22,613.57-31,202.70-13,655.07

Finding the Fourth Proportional to 22,613.57, 31,202.70 and 13,655.07

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Solution

The fourth proportional to 22,613.57, 31,202.70 and 13,655.07 is: 18,841.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.57 : 31,202.70 = 13,655.07 : x
  2. Step 2: Convert to fraction form
    22,613.57/31,202.70 = 13,655.07/x
  3. Step 3: Cross multiply
    22,613.57x = 31,202.70 × 13,655.07
  4. Step 4: Simplify right side
    22,613.57x = 426,075,078.29
  5. Step 5: Solve for x
    x = 426,075,078.29/22,613.57
  6. Step 6: Final answer
    x = 18,841.57

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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.