Home / 39,312.32-54,249.15-21,407.27

Finding the Fourth Proportional to 39,312.32, 54,249.15 and 21,407.27

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Solution

The fourth proportional to 39,312.32, 54,249.15 and 21,407.27 is: 29,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.32 : 54,249.15 = 21,407.27 : x
  2. Step 2: Convert to fraction form
    39,312.32/54,249.15 = 21,407.27/x
  3. Step 3: Cross multiply
    39,312.32x = 54,249.15 × 21,407.27
  4. Step 4: Simplify right side
    39,312.32x = 1,161,326,201.32
  5. Step 5: Solve for x
    x = 1,161,326,201.32/39,312.32
  6. Step 6: Final answer
    x = 29,541.02

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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.