Home / 27,807.19-38,383.29-16,905.31

Finding the Fourth Proportional to 27,807.19, 38,383.29 and 16,905.31

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Solution

The fourth proportional to 27,807.19, 38,383.29 and 16,905.31 is: 23,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.19 : 38,383.29 = 16,905.31 : x
  2. Step 2: Convert to fraction form
    27,807.19/38,383.29 = 16,905.31/x
  3. Step 3: Cross multiply
    27,807.19x = 38,383.29 × 16,905.31
  4. Step 4: Simplify right side
    27,807.19x = 648,881,416.27
  5. Step 5: Solve for x
    x = 648,881,416.27/27,807.19
  6. Step 6: Final answer
    x = 23,335.02

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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.