Home / 19,972.48-27,561.90-11,019.94

Finding the Fourth Proportional to 19,972.48, 27,561.90 and 11,019.94

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Solution

The fourth proportional to 19,972.48, 27,561.90 and 11,019.94 is: 15,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.48 : 27,561.90 = 11,019.94 : x
  2. Step 2: Convert to fraction form
    19,972.48/27,561.90 = 11,019.94/x
  3. Step 3: Cross multiply
    19,972.48x = 27,561.90 × 11,019.94
  4. Step 4: Simplify right side
    19,972.48x = 303,730,484.29
  5. Step 5: Solve for x
    x = 303,730,484.29/19,972.48
  6. Step 6: Final answer
    x = 15,207.45

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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.