Home / 21,118.67-29,125.83-17,769.38

Finding the Fourth Proportional to 21,118.67, 29,125.83 and 17,769.38

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Solution

The fourth proportional to 21,118.67, 29,125.83 and 17,769.38 is: 24,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,118.67 : 29,125.83 = 17,769.38 : x
  2. Step 2: Convert to fraction form
    21,118.67/29,125.83 = 17,769.38/x
  3. Step 3: Cross multiply
    21,118.67x = 29,125.83 × 17,769.38
  4. Step 4: Simplify right side
    21,118.67x = 517,547,762.14
  5. Step 5: Solve for x
    x = 517,547,762.14/21,118.67
  6. Step 6: Final answer
    x = 24,506.64

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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.