Home / 21,770.24-32,653.13-6,989.76

Finding the Fourth Proportional to 21,770.24, 32,653.13 and 6,989.76

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Solution

The fourth proportional to 21,770.24, 32,653.13 and 6,989.76 is: 10,483.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.24 : 32,653.13 = 6,989.76 : x
  2. Step 2: Convert to fraction form
    21,770.24/32,653.13 = 6,989.76/x
  3. Step 3: Cross multiply
    21,770.24x = 32,653.13 × 6,989.76
  4. Step 4: Simplify right side
    21,770.24x = 228,237,507
  5. Step 5: Solve for x
    x = 228,237,507/21,770.24
  6. Step 6: Final answer
    x = 10,483.92

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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.