Home / 19,921.68-29,875.55-5,877.98

Finding the Fourth Proportional to 19,921.68, 29,875.55 and 5,877.98

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Solution

The fourth proportional to 19,921.68, 29,875.55 and 5,877.98 is: 8,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.68 : 29,875.55 = 5,877.98 : x
  2. Step 2: Convert to fraction form
    19,921.68/29,875.55 = 5,877.98/x
  3. Step 3: Cross multiply
    19,921.68x = 29,875.55 × 5,877.98
  4. Step 4: Simplify right side
    19,921.68x = 175,607,818.65
  5. Step 5: Solve for x
    x = 175,607,818.65/19,921.68
  6. Step 6: Final answer
    x = 8,814.91

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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.