Home / 20,772.24-28,666.08-11,341.16

Finding the Fourth Proportional to 20,772.24, 28,666.08 and 11,341.16

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Solution

The fourth proportional to 20,772.24, 28,666.08 and 11,341.16 is: 15,651.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.24 : 28,666.08 = 11,341.16 : x
  2. Step 2: Convert to fraction form
    20,772.24/28,666.08 = 11,341.16/x
  3. Step 3: Cross multiply
    20,772.24x = 28,666.08 × 11,341.16
  4. Step 4: Simplify right side
    20,772.24x = 325,106,599.85
  5. Step 5: Solve for x
    x = 325,106,599.85/20,772.24
  6. Step 6: Final answer
    x = 15,651.01

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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.