Home / 20,199.18-27,881.16-13,823.37

Finding the Fourth Proportional to 20,199.18, 27,881.16 and 13,823.37

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Solution

The fourth proportional to 20,199.18, 27,881.16 and 13,823.37 is: 19,080.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.18 : 27,881.16 = 13,823.37 : x
  2. Step 2: Convert to fraction form
    20,199.18/27,881.16 = 13,823.37/x
  3. Step 3: Cross multiply
    20,199.18x = 27,881.16 × 13,823.37
  4. Step 4: Simplify right side
    20,199.18x = 385,411,590.71
  5. Step 5: Solve for x
    x = 385,411,590.71/20,199.18
  6. Step 6: Final answer
    x = 19,080.56

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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.