Home / 20,506.32-28,296.24-11,552.40

Finding the Fourth Proportional to 20,506.32, 28,296.24 and 11,552.40

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Solution

The fourth proportional to 20,506.32, 28,296.24 and 11,552.40 is: 15,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.32 : 28,296.24 = 11,552.40 : x
  2. Step 2: Convert to fraction form
    20,506.32/28,296.24 = 11,552.40/x
  3. Step 3: Cross multiply
    20,506.32x = 28,296.24 × 11,552.40
  4. Step 4: Simplify right side
    20,506.32x = 326,889,482.98
  5. Step 5: Solve for x
    x = 326,889,482.98/20,506.32
  6. Step 6: Final answer
    x = 15,940.91

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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.