Home / 21,861.16-32,779.74-9,377.32

Finding the Fourth Proportional to 21,861.16, 32,779.74 and 9,377.32

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Solution

The fourth proportional to 21,861.16, 32,779.74 and 9,377.32 is: 14,060.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861.16 : 32,779.74 = 9,377.32 : x
  2. Step 2: Convert to fraction form
    21,861.16/32,779.74 = 9,377.32/x
  3. Step 3: Cross multiply
    21,861.16x = 32,779.74 × 9,377.32
  4. Step 4: Simplify right side
    21,861.16x = 307,386,111.50
  5. Step 5: Solve for x
    x = 307,386,111.50/21,861.16
  6. Step 6: Final answer
    x = 14,060.83

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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.