Home / 20,322.69-28,045.10-11,248.07

Finding the Fourth Proportional to 20,322.69, 28,045.10 and 11,248.07

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Solution

The fourth proportional to 20,322.69, 28,045.10 and 11,248.07 is: 15,522.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.69 : 28,045.10 = 11,248.07 : x
  2. Step 2: Convert to fraction form
    20,322.69/28,045.10 = 11,248.07/x
  3. Step 3: Cross multiply
    20,322.69x = 28,045.10 × 11,248.07
  4. Step 4: Simplify right side
    20,322.69x = 315,453,337.05
  5. Step 5: Solve for x
    x = 315,453,337.05/20,322.69
  6. Step 6: Final answer
    x = 15,522.22

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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.