Home / 21,538.72-32,308.40-14,190.24

Finding the Fourth Proportional to 21,538.72, 32,308.40 and 14,190.24

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Solution

The fourth proportional to 21,538.72, 32,308.40 and 14,190.24 is: 21,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538.72 : 32,308.40 = 14,190.24 : x
  2. Step 2: Convert to fraction form
    21,538.72/32,308.40 = 14,190.24/x
  3. Step 3: Cross multiply
    21,538.72x = 32,308.40 × 14,190.24
  4. Step 4: Simplify right side
    21,538.72x = 458,463,950.02
  5. Step 5: Solve for x
    x = 458,463,950.02/21,538.72
  6. Step 6: Final answer
    x = 21,285.57

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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.