Home / 27,221.28-40,848.48-12,437.28

Finding the Fourth Proportional to 27,221.28, 40,848.48 and 12,437.28

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Solution

The fourth proportional to 27,221.28, 40,848.48 and 12,437.28 is: 18,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,221.28 : 40,848.48 = 12,437.28 : x
  2. Step 2: Convert to fraction form
    27,221.28/40,848.48 = 12,437.28/x
  3. Step 3: Cross multiply
    27,221.28x = 40,848.48 × 12,437.28
  4. Step 4: Simplify right side
    27,221.28x = 508,043,983.33
  5. Step 5: Solve for x
    x = 508,043,983.33/27,221.28
  6. Step 6: Final answer
    x = 18,663.49

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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.