Home / 21,362.16-32,043.84-5,779.76

Finding the Fourth Proportional to 21,362.16, 32,043.84 and 5,779.76

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Solution

The fourth proportional to 21,362.16, 32,043.84 and 5,779.76 is: 8,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.16 : 32,043.84 = 5,779.76 : x
  2. Step 2: Convert to fraction form
    21,362.16/32,043.84 = 5,779.76/x
  3. Step 3: Cross multiply
    21,362.16x = 32,043.84 × 5,779.76
  4. Step 4: Simplify right side
    21,362.16x = 185,205,704.68
  5. Step 5: Solve for x
    x = 185,205,704.68/21,362.16
  6. Step 6: Final answer
    x = 8,669.80

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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.