Home / 21,558.72-32,337.36-7,707.36

Finding the Fourth Proportional to 21,558.72, 32,337.36 and 7,707.36

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Solution

The fourth proportional to 21,558.72, 32,337.36 and 7,707.36 is: 11,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558.72 : 32,337.36 = 7,707.36 : x
  2. Step 2: Convert to fraction form
    21,558.72/32,337.36 = 7,707.36/x
  3. Step 3: Cross multiply
    21,558.72x = 32,337.36 × 7,707.36
  4. Step 4: Simplify right side
    21,558.72x = 249,235,674.97
  5. Step 5: Solve for x
    x = 249,235,674.97/21,558.72
  6. Step 6: Final answer
    x = 11,560.78

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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.