Home / 21,349.20-32,004.60-13,957.20

Finding the Fourth Proportional to 21,349.20, 32,004.60 and 13,957.20

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Solution

The fourth proportional to 21,349.20, 32,004.60 and 13,957.20 is: 20,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.20 : 32,004.60 = 13,957.20 : x
  2. Step 2: Convert to fraction form
    21,349.20/32,004.60 = 13,957.20/x
  3. Step 3: Cross multiply
    21,349.20x = 32,004.60 × 13,957.20
  4. Step 4: Simplify right side
    21,349.20x = 446,694,603.12
  5. Step 5: Solve for x
    x = 446,694,603.12/21,349.20
  6. Step 6: Final answer
    x = 20,923.25

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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.