Home / 28,558.36-39,411.06-15,983.08

Finding the Fourth Proportional to 28,558.36, 39,411.06 and 15,983.08

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Solution

The fourth proportional to 28,558.36, 39,411.06 and 15,983.08 is: 22,056.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.36 : 39,411.06 = 15,983.08 : x
  2. Step 2: Convert to fraction form
    28,558.36/39,411.06 = 15,983.08/x
  3. Step 3: Cross multiply
    28,558.36x = 39,411.06 × 15,983.08
  4. Step 4: Simplify right side
    28,558.36x = 629,910,124.86
  5. Step 5: Solve for x
    x = 629,910,124.86/28,558.36
  6. Step 6: Final answer
    x = 22,056.94

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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.