Home / 39,392.10-54,359.10-21,486.96

Finding the Fourth Proportional to 39,392.10, 54,359.10 and 21,486.96

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Solution

The fourth proportional to 39,392.10, 54,359.10 and 21,486.96 is: 29,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.10 : 54,359.10 = 21,486.96 : x
  2. Step 2: Convert to fraction form
    39,392.10/54,359.10 = 21,486.96/x
  3. Step 3: Cross multiply
    39,392.10x = 54,359.10 × 21,486.96
  4. Step 4: Simplify right side
    39,392.10x = 1,168,011,807.34
  5. Step 5: Solve for x
    x = 1,168,011,807.34/39,392.10
  6. Step 6: Final answer
    x = 29,650.91

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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.