Home / 21,364.48-32,048.40-7,331.20

Finding the Fourth Proportional to 21,364.48, 32,048.40 and 7,331.20

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Solution

The fourth proportional to 21,364.48, 32,048.40 and 7,331.20 is: 10,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.48 : 32,048.40 = 7,331.20 : x
  2. Step 2: Convert to fraction form
    21,364.48/32,048.40 = 7,331.20/x
  3. Step 3: Cross multiply
    21,364.48x = 32,048.40 × 7,331.20
  4. Step 4: Simplify right side
    21,364.48x = 234,953,230.08
  5. Step 5: Solve for x
    x = 234,953,230.08/21,364.48
  6. Step 6: Final answer
    x = 10,997.38

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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.