Home / 28,935.10-43,317.60-21,572.20

Finding the Fourth Proportional to 28,935.10, 43,317.60 and 21,572.20

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Solution

The fourth proportional to 28,935.10, 43,317.60 and 21,572.20 is: 32,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.10 : 43,317.60 = 21,572.20 : x
  2. Step 2: Convert to fraction form
    28,935.10/43,317.60 = 21,572.20/x
  3. Step 3: Cross multiply
    28,935.10x = 43,317.60 × 21,572.20
  4. Step 4: Simplify right side
    28,935.10x = 934,455,930.72
  5. Step 5: Solve for x
    x = 934,455,930.72/28,935.10
  6. Step 6: Final answer
    x = 32,294.89

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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.