Home / 39,238.98-54,148.68-21,333.57

Finding the Fourth Proportional to 39,238.98, 54,148.68 and 21,333.57

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Solution

The fourth proportional to 39,238.98, 54,148.68 and 21,333.57 is: 29,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,238.98 : 54,148.68 = 21,333.57 : x
  2. Step 2: Convert to fraction form
    39,238.98/54,148.68 = 21,333.57/x
  3. Step 3: Cross multiply
    39,238.98x = 54,148.68 × 21,333.57
  4. Step 4: Simplify right side
    39,238.98x = 1,155,184,655.19
  5. Step 5: Solve for x
    x = 1,155,184,655.19/39,238.98
  6. Step 6: Final answer
    x = 29,439.72

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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.