Home / 39,905.20-55,058.40-22,677.32

Finding the Fourth Proportional to 39,905.20, 55,058.40 and 22,677.32

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Solution

The fourth proportional to 39,905.20, 55,058.40 and 22,677.32 is: 31,288.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.20 : 55,058.40 = 22,677.32 : x
  2. Step 2: Convert to fraction form
    39,905.20/55,058.40 = 22,677.32/x
  3. Step 3: Cross multiply
    39,905.20x = 55,058.40 × 22,677.32
  4. Step 4: Simplify right side
    39,905.20x = 1,248,576,955.49
  5. Step 5: Solve for x
    x = 1,248,576,955.49/39,905.20
  6. Step 6: Final answer
    x = 31,288.58

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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.