Home / 42,827.02-64,246.64-13,247.17

Finding the Fourth Proportional to 42,827.02, 64,246.64 and 13,247.17

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Solution

The fourth proportional to 42,827.02, 64,246.64 and 13,247.17 is: 19,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,827.02 : 64,246.64 = 13,247.17 : x
  2. Step 2: Convert to fraction form
    42,827.02/64,246.64 = 13,247.17/x
  3. Step 3: Cross multiply
    42,827.02x = 64,246.64 × 13,247.17
  4. Step 4: Simplify right side
    42,827.02x = 851,085,935.16
  5. Step 5: Solve for x
    x = 851,085,935.16/42,827.02
  6. Step 6: Final answer
    x = 19,872.64

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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.