Home / 21,338.48-32,009.40-7,305.20

Finding the Fourth Proportional to 21,338.48, 32,009.40 and 7,305.20

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Solution

The fourth proportional to 21,338.48, 32,009.40 and 7,305.20 is: 10,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.48 : 32,009.40 = 7,305.20 : x
  2. Step 2: Convert to fraction form
    21,338.48/32,009.40 = 7,305.20/x
  3. Step 3: Cross multiply
    21,338.48x = 32,009.40 × 7,305.20
  4. Step 4: Simplify right side
    21,338.48x = 233,835,068.88
  5. Step 5: Solve for x
    x = 233,835,068.88/21,338.48
  6. Step 6: Final answer
    x = 10,958.38

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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.