Home / 21,615.48-32,426.58-9,135.56

Finding the Fourth Proportional to 21,615.48, 32,426.58 and 9,135.56

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Solution

The fourth proportional to 21,615.48, 32,426.58 and 9,135.56 is: 13,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.48 : 32,426.58 = 9,135.56 : x
  2. Step 2: Convert to fraction form
    21,615.48/32,426.58 = 9,135.56/x
  3. Step 3: Cross multiply
    21,615.48x = 32,426.58 × 9,135.56
  4. Step 4: Simplify right side
    21,615.48x = 296,234,899.67
  5. Step 5: Solve for x
    x = 296,234,899.67/21,615.48
  6. Step 6: Final answer
    x = 13,704.76

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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.