Home / 28,325.08-39,025.96-20,762.92

Finding the Fourth Proportional to 28,325.08, 39,025.96 and 20,762.92

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Solution

The fourth proportional to 28,325.08, 39,025.96 and 20,762.92 is: 28,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.08 : 39,025.96 = 20,762.92 : x
  2. Step 2: Convert to fraction form
    28,325.08/39,025.96 = 20,762.92/x
  3. Step 3: Cross multiply
    28,325.08x = 39,025.96 × 20,762.92
  4. Step 4: Simplify right side
    28,325.08x = 810,292,885.40
  5. Step 5: Solve for x
    x = 810,292,885.40/28,325.08
  6. Step 6: Final answer
    x = 28,606.91

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Half scale
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Double scale
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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.