Home / 39,624.04-54,681.26-21,719.68

Finding the Fourth Proportional to 39,624.04, 54,681.26 and 21,719.68

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Solution

The fourth proportional to 39,624.04, 54,681.26 and 21,719.68 is: 29,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.04 : 54,681.26 = 21,719.68 : x
  2. Step 2: Convert to fraction form
    39,624.04/54,681.26 = 21,719.68/x
  3. Step 3: Cross multiply
    39,624.04x = 54,681.26 × 21,719.68
  4. Step 4: Simplify right side
    39,624.04x = 1,187,659,469.20
  5. Step 5: Solve for x
    x = 1,187,659,469.20/39,624.04
  6. Step 6: Final answer
    x = 29,973.20

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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.