Home / 28,750.08-43,095.90-21,810

Finding the Fourth Proportional to 28,750.08, 43,095.90 and 21,810

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Solution

The fourth proportional to 28,750.08, 43,095.90 and 21,810 is: 32,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.08 : 43,095.90 = 21,810 : x
  2. Step 2: Convert to fraction form
    28,750.08/43,095.90 = 21,810/x
  3. Step 3: Cross multiply
    28,750.08x = 43,095.90 × 21,810
  4. Step 4: Simplify right side
    28,750.08x = 939,921,579
  5. Step 5: Solve for x
    x = 939,921,579/28,750.08
  6. Step 6: Final answer
    x = 32,692.83

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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.