Home / 28,558.76-39,411.18-15,983.48

Finding the Fourth Proportional to 28,558.76, 39,411.18 and 15,983.48

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Solution

The fourth proportional to 28,558.76, 39,411.18 and 15,983.48 is: 22,057.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.76 : 39,411.18 = 15,983.48 : x
  2. Step 2: Convert to fraction form
    28,558.76/39,411.18 = 15,983.48/x
  3. Step 3: Cross multiply
    28,558.76x = 39,411.18 × 15,983.48
  4. Step 4: Simplify right side
    28,558.76x = 629,927,807.31
  5. Step 5: Solve for x
    x = 629,927,807.31/28,558.76
  6. Step 6: Final answer
    x = 22,057.25

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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.