Home / 42,815.59-64,223.65-11,225.37

Finding the Fourth Proportional to 42,815.59, 64,223.65 and 11,225.37

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Solution

The fourth proportional to 42,815.59, 64,223.65 and 11,225.37 is: 16,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,815.59 : 64,223.65 = 11,225.37 : x
  2. Step 2: Convert to fraction form
    42,815.59/64,223.65 = 11,225.37/x
  3. Step 3: Cross multiply
    42,815.59x = 64,223.65 × 11,225.37
  4. Step 4: Simplify right side
    42,815.59x = 720,934,262.06
  5. Step 5: Solve for x
    x = 720,934,262.06/42,815.59
  6. Step 6: Final answer
    x = 16,838.12

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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.