Home / 21,595.86-32,393.78-12,355.38

Finding the Fourth Proportional to 21,595.86, 32,393.78 and 12,355.38

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Solution

The fourth proportional to 21,595.86, 32,393.78 and 12,355.38 is: 18,533.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.86 : 32,393.78 = 12,355.38 : x
  2. Step 2: Convert to fraction form
    21,595.86/32,393.78 = 12,355.38/x
  3. Step 3: Cross multiply
    21,595.86x = 32,393.78 × 12,355.38
  4. Step 4: Simplify right side
    21,595.86x = 400,237,330.46
  5. Step 5: Solve for x
    x = 400,237,330.46/21,595.86
  6. Step 6: Final answer
    x = 18,533.06

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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.