Home / 19,943.81-27,522.04-10,991.08

Finding the Fourth Proportional to 19,943.81, 27,522.04 and 10,991.08

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Solution

The fourth proportional to 19,943.81, 27,522.04 and 10,991.08 is: 15,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.81 : 27,522.04 = 10,991.08 : x
  2. Step 2: Convert to fraction form
    19,943.81/27,522.04 = 10,991.08/x
  3. Step 3: Cross multiply
    19,943.81x = 27,522.04 × 10,991.08
  4. Step 4: Simplify right side
    19,943.81x = 302,496,943.40
  5. Step 5: Solve for x
    x = 302,496,943.40/19,943.81
  6. Step 6: Final answer
    x = 15,167.46

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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.