Home / 28,495.34-42,755.55-15,165.21

Finding the Fourth Proportional to 28,495.34, 42,755.55 and 15,165.21

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Solution

The fourth proportional to 28,495.34, 42,755.55 and 15,165.21 is: 22,754.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,495.34 : 42,755.55 = 15,165.21 : x
  2. Step 2: Convert to fraction form
    28,495.34/42,755.55 = 15,165.21/x
  3. Step 3: Cross multiply
    28,495.34x = 42,755.55 × 15,165.21
  4. Step 4: Simplify right side
    28,495.34x = 648,396,894.42
  5. Step 5: Solve for x
    x = 648,396,894.42/28,495.34
  6. Step 6: Final answer
    x = 22,754.49

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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.