Home / 21,557.05-32,336.48-7,518.49

Finding the Fourth Proportional to 21,557.05, 32,336.48 and 7,518.49

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Solution

The fourth proportional to 21,557.05, 32,336.48 and 7,518.49 is: 11,278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.05 : 32,336.48 = 7,518.49 : x
  2. Step 2: Convert to fraction form
    21,557.05/32,336.48 = 7,518.49/x
  3. Step 3: Cross multiply
    21,557.05x = 32,336.48 × 7,518.49
  4. Step 4: Simplify right side
    21,557.05x = 243,121,439.47
  5. Step 5: Solve for x
    x = 243,121,439.47/21,557.05
  6. Step 6: Final answer
    x = 11,278.05

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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.