Home / 39,403.07-58,722.41-38,142.20

Finding the Fourth Proportional to 39,403.07, 58,722.41 and 38,142.20

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Solution

The fourth proportional to 39,403.07, 58,722.41 and 38,142.20 is: 56,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,403.07 : 58,722.41 = 38,142.20 : x
  2. Step 2: Convert to fraction form
    39,403.07/58,722.41 = 38,142.20/x
  3. Step 3: Cross multiply
    39,403.07x = 58,722.41 × 38,142.20
  4. Step 4: Simplify right side
    39,403.07x = 2,239,802,148.86
  5. Step 5: Solve for x
    x = 2,239,802,148.86/39,403.07
  6. Step 6: Final answer
    x = 56,843.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.