Home / 20,018.79-29,984.45-10,141.11

Finding the Fourth Proportional to 20,018.79, 29,984.45 and 10,141.11

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Solution

The fourth proportional to 20,018.79, 29,984.45 and 10,141.11 is: 15,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.79 : 29,984.45 = 10,141.11 : x
  2. Step 2: Convert to fraction form
    20,018.79/29,984.45 = 10,141.11/x
  3. Step 3: Cross multiply
    20,018.79x = 29,984.45 × 10,141.11
  4. Step 4: Simplify right side
    20,018.79x = 304,075,555.03
  5. Step 5: Solve for x
    x = 304,075,555.03/20,018.79
  6. Step 6: Final answer
    x = 15,189.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.