Home / 42,782.65-64,190.41-17,816.02

Finding the Fourth Proportional to 42,782.65, 64,190.41 and 17,816.02

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Solution

The fourth proportional to 42,782.65, 64,190.41 and 17,816.02 is: 26,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,782.65 : 64,190.41 = 17,816.02 : x
  2. Step 2: Convert to fraction form
    42,782.65/64,190.41 = 17,816.02/x
  3. Step 3: Cross multiply
    42,782.65x = 64,190.41 × 17,816.02
  4. Step 4: Simplify right side
    42,782.65x = 1,143,617,423.35
  5. Step 5: Solve for x
    x = 1,143,617,423.35/42,782.65
  6. Step 6: Final answer
    x = 26,730.87

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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.