Home / 19,810.72-29,717.45-5,770.87

Finding the Fourth Proportional to 19,810.72, 29,717.45 and 5,770.87

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Solution

The fourth proportional to 19,810.72, 29,717.45 and 5,770.87 is: 8,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.72 : 29,717.45 = 5,770.87 : x
  2. Step 2: Convert to fraction form
    19,810.72/29,717.45 = 5,770.87/x
  3. Step 3: Cross multiply
    19,810.72x = 29,717.45 × 5,770.87
  4. Step 4: Simplify right side
    19,810.72x = 171,495,392.09
  5. Step 5: Solve for x
    x = 171,495,392.09/19,810.72
  6. Step 6: Final answer
    x = 8,656.70

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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.