Home / 39,409.21-59,145.33-20,700.28

Finding the Fourth Proportional to 39,409.21, 59,145.33 and 20,700.28

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Solution

The fourth proportional to 39,409.21, 59,145.33 and 20,700.28 is: 31,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,409.21 : 59,145.33 = 20,700.28 : x
  2. Step 2: Convert to fraction form
    39,409.21/59,145.33 = 20,700.28/x
  3. Step 3: Cross multiply
    39,409.21x = 59,145.33 × 20,700.28
  4. Step 4: Simplify right side
    39,409.21x = 1,224,325,043.25
  5. Step 5: Solve for x
    x = 1,224,325,043.25/39,409.21
  6. Step 6: Final answer
    x = 31,066.98

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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.