Home / 28,729.92-39,637.76-23,415.60

Finding the Fourth Proportional to 28,729.92, 39,637.76 and 23,415.60

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Solution

The fourth proportional to 28,729.92, 39,637.76 and 23,415.60 is: 32,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729.92 : 39,637.76 = 23,415.60 : x
  2. Step 2: Convert to fraction form
    28,729.92/39,637.76 = 23,415.60/x
  3. Step 3: Cross multiply
    28,729.92x = 39,637.76 × 23,415.60
  4. Step 4: Simplify right side
    28,729.92x = 928,141,933.06
  5. Step 5: Solve for x
    x = 928,141,933.06/28,729.92
  6. Step 6: Final answer
    x = 32,305.76

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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.