Home / 19,854.58-29,782.50-9,988.48

Finding the Fourth Proportional to 19,854.58, 29,782.50 and 9,988.48

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Solution

The fourth proportional to 19,854.58, 29,782.50 and 9,988.48 is: 14,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.58 : 29,782.50 = 9,988.48 : x
  2. Step 2: Convert to fraction form
    19,854.58/29,782.50 = 9,988.48/x
  3. Step 3: Cross multiply
    19,854.58x = 29,782.50 × 9,988.48
  4. Step 4: Simplify right side
    19,854.58x = 297,481,905.60
  5. Step 5: Solve for x
    x = 297,481,905.60/19,854.58
  6. Step 6: Final answer
    x = 14,983.04

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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.