Home / 19,988.10-27,583.50-10,914.06

Finding the Fourth Proportional to 19,988.10, 27,583.50 and 10,914.06

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Solution

The fourth proportional to 19,988.10, 27,583.50 and 10,914.06 is: 15,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.10 : 27,583.50 = 10,914.06 : x
  2. Step 2: Convert to fraction form
    19,988.10/27,583.50 = 10,914.06/x
  3. Step 3: Cross multiply
    19,988.10x = 27,583.50 × 10,914.06
  4. Step 4: Simplify right side
    19,988.10x = 301,047,974.01
  5. Step 5: Solve for x
    x = 301,047,974.01/19,988.10
  6. Step 6: Final answer
    x = 15,061.36

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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.