Home / 19,985.66-29,990.37-8,892.98

Finding the Fourth Proportional to 19,985.66, 29,990.37 and 8,892.98

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Solution

The fourth proportional to 19,985.66, 29,990.37 and 8,892.98 is: 13,344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.66 : 29,990.37 = 8,892.98 : x
  2. Step 2: Convert to fraction form
    19,985.66/29,990.37 = 8,892.98/x
  3. Step 3: Cross multiply
    19,985.66x = 29,990.37 × 8,892.98
  4. Step 4: Simplify right side
    19,985.66x = 266,703,566.19
  5. Step 5: Solve for x
    x = 266,703,566.19/19,985.66
  6. Step 6: Final answer
    x = 13,344.75

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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.