Home / 42,887.17-64,343.99-19,214.65

Finding the Fourth Proportional to 42,887.17, 64,343.99 and 19,214.65

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Solution

The fourth proportional to 42,887.17, 64,343.99 and 19,214.65 is: 28,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,887.17 : 64,343.99 = 19,214.65 : x
  2. Step 2: Convert to fraction form
    42,887.17/64,343.99 = 19,214.65/x
  3. Step 3: Cross multiply
    42,887.17x = 64,343.99 × 19,214.65
  4. Step 4: Simplify right side
    42,887.17x = 1,236,347,247.45
  5. Step 5: Solve for x
    x = 1,236,347,247.45/42,887.17
  6. Step 6: Final answer
    x = 28,827.90

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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.