Home / 21,158.49-31,731.35-6,363.48

Finding the Fourth Proportional to 21,158.49, 31,731.35 and 6,363.48

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Solution

The fourth proportional to 21,158.49, 31,731.35 and 6,363.48 is: 9,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,158.49 : 31,731.35 = 6,363.48 : x
  2. Step 2: Convert to fraction form
    21,158.49/31,731.35 = 6,363.48/x
  3. Step 3: Cross multiply
    21,158.49x = 31,731.35 × 6,363.48
  4. Step 4: Simplify right side
    21,158.49x = 201,921,779.28
  5. Step 5: Solve for x
    x = 201,921,779.28/21,158.49
  6. Step 6: Final answer
    x = 9,543.30

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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.