Home / 21,890.32-32,840.88-6,307.81

Finding the Fourth Proportional to 21,890.32, 32,840.88 and 6,307.81

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Solution

The fourth proportional to 21,890.32, 32,840.88 and 6,307.81 is: 9,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.32 : 32,840.88 = 6,307.81 : x
  2. Step 2: Convert to fraction form
    21,890.32/32,840.88 = 6,307.81/x
  3. Step 3: Cross multiply
    21,890.32x = 32,840.88 × 6,307.81
  4. Step 4: Simplify right side
    21,890.32x = 207,154,031.27
  5. Step 5: Solve for x
    x = 207,154,031.27/21,890.32
  6. Step 6: Final answer
    x = 9,463.27

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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.