Home / 27,106.80-37,404.12-15,169.20

Finding the Fourth Proportional to 27,106.80, 37,404.12 and 15,169.20

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Solution

The fourth proportional to 27,106.80, 37,404.12 and 15,169.20 is: 20,931.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,106.80 : 37,404.12 = 15,169.20 : x
  2. Step 2: Convert to fraction form
    27,106.80/37,404.12 = 15,169.20/x
  3. Step 3: Cross multiply
    27,106.80x = 37,404.12 × 15,169.20
  4. Step 4: Simplify right side
    27,106.80x = 567,390,577.10
  5. Step 5: Solve for x
    x = 567,390,577.10/27,106.80
  6. Step 6: Final answer
    x = 20,931.67

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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.