Home / 19,875.10-29,801.31-8,174.38

Finding the Fourth Proportional to 19,875.10, 29,801.31 and 8,174.38

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Solution

The fourth proportional to 19,875.10, 29,801.31 and 8,174.38 is: 12,256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.10 : 29,801.31 = 8,174.38 : x
  2. Step 2: Convert to fraction form
    19,875.10/29,801.31 = 8,174.38/x
  3. Step 3: Cross multiply
    19,875.10x = 29,801.31 × 8,174.38
  4. Step 4: Simplify right side
    19,875.10x = 243,607,232.44
  5. Step 5: Solve for x
    x = 243,607,232.44/19,875.10
  6. Step 6: Final answer
    x = 12,256.91

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1.5x scale

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.