Home / 28,582.85-39,444.63-15,836.42

Finding the Fourth Proportional to 28,582.85, 39,444.63 and 15,836.42

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Solution

The fourth proportional to 28,582.85, 39,444.63 and 15,836.42 is: 21,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.85 : 39,444.63 = 15,836.42 : x
  2. Step 2: Convert to fraction form
    28,582.85/39,444.63 = 15,836.42/x
  3. Step 3: Cross multiply
    28,582.85x = 39,444.63 × 15,836.42
  4. Step 4: Simplify right side
    28,582.85x = 624,661,727.42
  5. Step 5: Solve for x
    x = 624,661,727.42/28,582.85
  6. Step 6: Final answer
    x = 21,854.42

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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.