Home / 39,426.60-54,406.74-21,522.36

Finding the Fourth Proportional to 39,426.60, 54,406.74 and 21,522.36

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Solution

The fourth proportional to 39,426.60, 54,406.74 and 21,522.36 is: 29,699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,426.60 : 54,406.74 = 21,522.36 : x
  2. Step 2: Convert to fraction form
    39,426.60/54,406.74 = 21,522.36/x
  3. Step 3: Cross multiply
    39,426.60x = 54,406.74 × 21,522.36
  4. Step 4: Simplify right side
    39,426.60x = 1,170,961,444.71
  5. Step 5: Solve for x
    x = 1,170,961,444.71/39,426.60
  6. Step 6: Final answer
    x = 29,699.78

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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.