Home / 19,860.48-29,761.56-8,167.32

Finding the Fourth Proportional to 19,860.48, 29,761.56 and 8,167.32

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Solution

The fourth proportional to 19,860.48, 29,761.56 and 8,167.32 is: 12,238.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.48 : 29,761.56 = 8,167.32 : x
  2. Step 2: Convert to fraction form
    19,860.48/29,761.56 = 8,167.32/x
  3. Step 3: Cross multiply
    19,860.48x = 29,761.56 × 8,167.32
  4. Step 4: Simplify right side
    19,860.48x = 243,072,184.22
  5. Step 5: Solve for x
    x = 243,072,184.22/19,860.48
  6. Step 6: Final answer
    x = 12,238.99

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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.