Home / 19,742.59-27,242.09-11,359.09

Finding the Fourth Proportional to 19,742.59, 27,242.09 and 11,359.09

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Solution

The fourth proportional to 19,742.59, 27,242.09 and 11,359.09 is: 15,674.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.59 : 27,242.09 = 11,359.09 : x
  2. Step 2: Convert to fraction form
    19,742.59/27,242.09 = 11,359.09/x
  3. Step 3: Cross multiply
    19,742.59x = 27,242.09 × 11,359.09
  4. Step 4: Simplify right side
    19,742.59x = 309,445,295.30
  5. Step 5: Solve for x
    x = 309,445,295.30/19,742.59
  6. Step 6: Final answer
    x = 15,674.00

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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.