Home / 39,624.57-54,681.78-21,475.83

Finding the Fourth Proportional to 39,624.57, 54,681.78 and 21,475.83

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Solution

The fourth proportional to 39,624.57, 54,681.78 and 21,475.83 is: 29,636.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.57 : 54,681.78 = 21,475.83 : x
  2. Step 2: Convert to fraction form
    39,624.57/54,681.78 = 21,475.83/x
  3. Step 3: Cross multiply
    39,624.57x = 54,681.78 × 21,475.83
  4. Step 4: Simplify right side
    39,624.57x = 1,174,336,415.03
  5. Step 5: Solve for x
    x = 1,174,336,415.03/39,624.57
  6. Step 6: Final answer
    x = 29,636.57

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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.