Home / 20,681.49-28,545.53-11,734.23

Finding the Fourth Proportional to 20,681.49, 28,545.53 and 11,734.23

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Solution

The fourth proportional to 20,681.49, 28,545.53 and 11,734.23 is: 16,196.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.49 : 28,545.53 = 11,734.23 : x
  2. Step 2: Convert to fraction form
    20,681.49/28,545.53 = 11,734.23/x
  3. Step 3: Cross multiply
    20,681.49x = 28,545.53 × 11,734.23
  4. Step 4: Simplify right side
    20,681.49x = 334,959,814.49
  5. Step 5: Solve for x
    x = 334,959,814.49/20,681.49
  6. Step 6: Final answer
    x = 16,196.12

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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.