Home / 28,470.24-42,705.41-8,748.68

Finding the Fourth Proportional to 28,470.24, 42,705.41 and 8,748.68

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Solution

The fourth proportional to 28,470.24, 42,705.41 and 8,748.68 is: 13,123.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.24 : 42,705.41 = 8,748.68 : x
  2. Step 2: Convert to fraction form
    28,470.24/42,705.41 = 8,748.68/x
  3. Step 3: Cross multiply
    28,470.24x = 42,705.41 × 8,748.68
  4. Step 4: Simplify right side
    28,470.24x = 373,615,709.09
  5. Step 5: Solve for x
    x = 373,615,709.09/28,470.24
  6. Step 6: Final answer
    x = 13,123.03

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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.