Home / 39,312.41-54,249.27-21,407.34

Finding the Fourth Proportional to 39,312.41, 54,249.27 and 21,407.34

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Solution

The fourth proportional to 39,312.41, 54,249.27 and 21,407.34 is: 29,541.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.41 : 54,249.27 = 21,407.34 : x
  2. Step 2: Convert to fraction form
    39,312.41/54,249.27 = 21,407.34/x
  3. Step 3: Cross multiply
    39,312.41x = 54,249.27 × 21,407.34
  4. Step 4: Simplify right side
    39,312.41x = 1,161,332,567.64
  5. Step 5: Solve for x
    x = 1,161,332,567.64/39,312.41
  6. Step 6: Final answer
    x = 29,541.12

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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.