Home / 42,807.64-64,211.22-11,642.80

Finding the Fourth Proportional to 42,807.64, 64,211.22 and 11,642.80

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Solution

The fourth proportional to 42,807.64, 64,211.22 and 11,642.80 is: 17,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,807.64 : 64,211.22 = 11,642.80 : x
  2. Step 2: Convert to fraction form
    42,807.64/64,211.22 = 11,642.80/x
  3. Step 3: Cross multiply
    42,807.64x = 64,211.22 × 11,642.80
  4. Step 4: Simplify right side
    42,807.64x = 747,598,392.22
  5. Step 5: Solve for x
    x = 747,598,392.22/42,807.64
  6. Step 6: Final answer
    x = 17,464.13

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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.