Home / 39,607.74-54,658.65-21,703.86

Finding the Fourth Proportional to 39,607.74, 54,658.65 and 21,703.86

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Solution

The fourth proportional to 39,607.74, 54,658.65 and 21,703.86 is: 29,951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,607.74 : 54,658.65 = 21,703.86 : x
  2. Step 2: Convert to fraction form
    39,607.74/54,658.65 = 21,703.86/x
  3. Step 3: Cross multiply
    39,607.74x = 54,658.65 × 21,703.86
  4. Step 4: Simplify right side
    39,607.74x = 1,186,303,687.39
  5. Step 5: Solve for x
    x = 1,186,303,687.39/39,607.74
  6. Step 6: Final answer
    x = 29,951.31

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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.