Home / 28,693.31-39,596.63-15,772.89

Finding the Fourth Proportional to 28,693.31, 39,596.63 and 15,772.89

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Solution

The fourth proportional to 28,693.31, 39,596.63 and 15,772.89 is: 21,766.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693.31 : 39,596.63 = 15,772.89 : x
  2. Step 2: Convert to fraction form
    28,693.31/39,596.63 = 15,772.89/x
  3. Step 3: Cross multiply
    28,693.31x = 39,596.63 × 15,772.89
  4. Step 4: Simplify right side
    28,693.31x = 624,553,210.50
  5. Step 5: Solve for x
    x = 624,553,210.50/28,693.31
  6. Step 6: Final answer
    x = 21,766.51

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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.