Home / 39,384.58-54,378.12-31,864.27

Finding the Fourth Proportional to 39,384.58, 54,378.12 and 31,864.27

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Solution

The fourth proportional to 39,384.58, 54,378.12 and 31,864.27 is: 43,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,384.58 : 54,378.12 = 31,864.27 : x
  2. Step 2: Convert to fraction form
    39,384.58/54,378.12 = 31,864.27/x
  3. Step 3: Cross multiply
    39,384.58x = 54,378.12 × 31,864.27
  4. Step 4: Simplify right side
    39,384.58x = 1,732,719,097.77
  5. Step 5: Solve for x
    x = 1,732,719,097.77/39,384.58
  6. Step 6: Final answer
    x = 43,994.86

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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.