Home / 27,189.14-40,813.53-21,602.72

Finding the Fourth Proportional to 27,189.14, 40,813.53 and 21,602.72

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Solution

The fourth proportional to 27,189.14, 40,813.53 and 21,602.72 is: 32,427.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,189.14 : 40,813.53 = 21,602.72 : x
  2. Step 2: Convert to fraction form
    27,189.14/40,813.53 = 21,602.72/x
  3. Step 3: Cross multiply
    27,189.14x = 40,813.53 × 21,602.72
  4. Step 4: Simplify right side
    27,189.14x = 881,683,056.73
  5. Step 5: Solve for x
    x = 881,683,056.73/27,189.14
  6. Step 6: Final answer
    x = 32,427.77

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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.