Home / 19,929.03-27,502.14-11,431.47

Finding the Fourth Proportional to 19,929.03, 27,502.14 and 11,431.47

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Solution

The fourth proportional to 19,929.03, 27,502.14 and 11,431.47 is: 15,775.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.03 : 27,502.14 = 11,431.47 : x
  2. Step 2: Convert to fraction form
    19,929.03/27,502.14 = 11,431.47/x
  3. Step 3: Cross multiply
    19,929.03x = 27,502.14 × 11,431.47
  4. Step 4: Simplify right side
    19,929.03x = 314,389,888.35
  5. Step 5: Solve for x
    x = 314,389,888.35/19,929.03
  6. Step 6: Final answer
    x = 15,775.47

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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.