Home / 19,785.48-27,305.28-11,402.52

Finding the Fourth Proportional to 19,785.48, 27,305.28 and 11,402.52

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Solution

The fourth proportional to 19,785.48, 27,305.28 and 11,402.52 is: 15,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.48 : 27,305.28 = 11,402.52 : x
  2. Step 2: Convert to fraction form
    19,785.48/27,305.28 = 11,402.52/x
  3. Step 3: Cross multiply
    19,785.48x = 27,305.28 × 11,402.52
  4. Step 4: Simplify right side
    19,785.48x = 311,349,001.31
  5. Step 5: Solve for x
    x = 311,349,001.31/19,785.48
  6. Step 6: Final answer
    x = 15,736.24

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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.