Home / 28,479.20-42,694.58-17,393.67

Finding the Fourth Proportional to 28,479.20, 42,694.58 and 17,393.67

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Solution

The fourth proportional to 28,479.20, 42,694.58 and 17,393.67 is: 26,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.20 : 42,694.58 = 17,393.67 : x
  2. Step 2: Convert to fraction form
    28,479.20/42,694.58 = 17,393.67/x
  3. Step 3: Cross multiply
    28,479.20x = 42,694.58 × 17,393.67
  4. Step 4: Simplify right side
    28,479.20x = 742,615,348.34
  5. Step 5: Solve for x
    x = 742,615,348.34/28,479.20
  6. Step 6: Final answer
    x = 26,075.71

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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.