Home / 19,929.29-27,501.66-11,975.90

Finding the Fourth Proportional to 19,929.29, 27,501.66 and 11,975.90

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Solution

The fourth proportional to 19,929.29, 27,501.66 and 11,975.90 is: 16,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.29 : 27,501.66 = 11,975.90 : x
  2. Step 2: Convert to fraction form
    19,929.29/27,501.66 = 11,975.90/x
  3. Step 3: Cross multiply
    19,929.29x = 27,501.66 × 11,975.90
  4. Step 4: Simplify right side
    19,929.29x = 329,356,992.49
  5. Step 5: Solve for x
    x = 329,356,992.49/19,929.29
  6. Step 6: Final answer
    x = 16,526.28

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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.