Home / 19,856.40-27,402.47-11,472.90

Finding the Fourth Proportional to 19,856.40, 27,402.47 and 11,472.90

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Solution

The fourth proportional to 19,856.40, 27,402.47 and 11,472.90 is: 15,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.40 : 27,402.47 = 11,472.90 : x
  2. Step 2: Convert to fraction form
    19,856.40/27,402.47 = 11,472.90/x
  3. Step 3: Cross multiply
    19,856.40x = 27,402.47 × 11,472.90
  4. Step 4: Simplify right side
    19,856.40x = 314,385,798.06
  5. Step 5: Solve for x
    x = 314,385,798.06/19,856.40
  6. Step 6: Final answer
    x = 15,832.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.