Home / 39,582.75-54,621.34-21,674.86

Finding the Fourth Proportional to 39,582.75, 54,621.34 and 21,674.86

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Solution

The fourth proportional to 39,582.75, 54,621.34 and 21,674.86 is: 29,909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,582.75 : 54,621.34 = 21,674.86 : x
  2. Step 2: Convert to fraction form
    39,582.75/54,621.34 = 21,674.86/x
  3. Step 3: Cross multiply
    39,582.75x = 54,621.34 × 21,674.86
  4. Step 4: Simplify right side
    39,582.75x = 1,183,909,897.51
  5. Step 5: Solve for x
    x = 1,183,909,897.51/39,582.75
  6. Step 6: Final answer
    x = 29,909.74

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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.