Home / 39,758.40-59,637.60-30,427.20

Finding the Fourth Proportional to 39,758.40, 59,637.60 and 30,427.20

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Solution

The fourth proportional to 39,758.40, 59,637.60 and 30,427.20 is: 45,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,758.40 : 59,637.60 = 30,427.20 : x
  2. Step 2: Convert to fraction form
    39,758.40/59,637.60 = 30,427.20/x
  3. Step 3: Cross multiply
    39,758.40x = 59,637.60 × 30,427.20
  4. Step 4: Simplify right side
    39,758.40x = 1,814,605,182.72
  5. Step 5: Solve for x
    x = 1,814,605,182.72/39,758.40
  6. Step 6: Final answer
    x = 45,640.80

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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.