Home / 28,533.08-39,376.92-15,957.80

Finding the Fourth Proportional to 28,533.08, 39,376.92 and 15,957.80

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Solution

The fourth proportional to 28,533.08, 39,376.92 and 15,957.80 is: 22,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,533.08 : 39,376.92 = 15,957.80 : x
  2. Step 2: Convert to fraction form
    28,533.08/39,376.92 = 15,957.80/x
  3. Step 3: Cross multiply
    28,533.08x = 39,376.92 × 15,957.80
  4. Step 4: Simplify right side
    28,533.08x = 628,369,013.98
  5. Step 5: Solve for x
    x = 628,369,013.98/28,533.08
  6. Step 6: Final answer
    x = 22,022.47

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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.