Home / 19,998.70-29,996.83-8,312.02

Finding the Fourth Proportional to 19,998.70, 29,996.83 and 8,312.02

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Solution

The fourth proportional to 19,998.70, 29,996.83 and 8,312.02 is: 12,467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.70 : 29,996.83 = 8,312.02 : x
  2. Step 2: Convert to fraction form
    19,998.70/29,996.83 = 8,312.02/x
  3. Step 3: Cross multiply
    19,998.70x = 29,996.83 × 8,312.02
  4. Step 4: Simplify right side
    19,998.70x = 249,334,186.29
  5. Step 5: Solve for x
    x = 249,334,186.29/19,998.70
  6. Step 6: Final answer
    x = 12,467.52

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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.