Home / 28,470.35-42,705.59-8,748.77

Finding the Fourth Proportional to 28,470.35, 42,705.59 and 8,748.77

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Solution

The fourth proportional to 28,470.35, 42,705.59 and 8,748.77 is: 13,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.35 : 42,705.59 = 8,748.77 : x
  2. Step 2: Convert to fraction form
    28,470.35/42,705.59 = 8,748.77/x
  3. Step 3: Cross multiply
    28,470.35x = 42,705.59 × 8,748.77
  4. Step 4: Simplify right side
    28,470.35x = 373,621,384.62
  5. Step 5: Solve for x
    x = 373,621,384.62/28,470.35
  6. Step 6: Final answer
    x = 13,123.17

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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.