Home / 21,124.76-31,677.80-6,330.92

Finding the Fourth Proportional to 21,124.76, 31,677.80 and 6,330.92

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Solution

The fourth proportional to 21,124.76, 31,677.80 and 6,330.92 is: 9,493.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.76 : 31,677.80 = 6,330.92 : x
  2. Step 2: Convert to fraction form
    21,124.76/31,677.80 = 6,330.92/x
  3. Step 3: Cross multiply
    21,124.76x = 31,677.80 × 6,330.92
  4. Step 4: Simplify right side
    21,124.76x = 200,549,427.53
  5. Step 5: Solve for x
    x = 200,549,427.53/21,124.76
  6. Step 6: Final answer
    x = 9,493.57

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1.5x scale

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.