Home / 28,582.94-39,443.56-15,835.62

Finding the Fourth Proportional to 28,582.94, 39,443.56 and 15,835.62

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Solution

The fourth proportional to 28,582.94, 39,443.56 and 15,835.62 is: 21,852.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.94 : 39,443.56 = 15,835.62 : x
  2. Step 2: Convert to fraction form
    28,582.94/39,443.56 = 15,835.62/x
  3. Step 3: Cross multiply
    28,582.94x = 39,443.56 × 15,835.62
  4. Step 4: Simplify right side
    28,582.94x = 624,613,227.61
  5. Step 5: Solve for x
    x = 624,613,227.61/28,582.94
  6. Step 6: Final answer
    x = 21,852.66

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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.