Home / 20,152.65-27,809.59-11,199.93

Finding the Fourth Proportional to 20,152.65, 27,809.59 and 11,199.93

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Solution

The fourth proportional to 20,152.65, 27,809.59 and 11,199.93 is: 15,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.65 : 27,809.59 = 11,199.93 : x
  2. Step 2: Convert to fraction form
    20,152.65/27,809.59 = 11,199.93/x
  3. Step 3: Cross multiply
    20,152.65x = 27,809.59 × 11,199.93
  4. Step 4: Simplify right side
    20,152.65x = 311,465,461.33
  5. Step 5: Solve for x
    x = 311,465,461.33/20,152.65
  6. Step 6: Final answer
    x = 15,455.31

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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.