Home / 28,272.05-42,343.49-13,491.35

Finding the Fourth Proportional to 28,272.05, 42,343.49 and 13,491.35

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Solution

The fourth proportional to 28,272.05, 42,343.49 and 13,491.35 is: 20,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.05 : 42,343.49 = 13,491.35 : x
  2. Step 2: Convert to fraction form
    28,272.05/42,343.49 = 13,491.35/x
  3. Step 3: Cross multiply
    28,272.05x = 42,343.49 × 13,491.35
  4. Step 4: Simplify right side
    28,272.05x = 571,270,776.35
  5. Step 5: Solve for x
    x = 571,270,776.35/28,272.05
  6. Step 6: Final answer
    x = 20,206.20

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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.