Home / 28,156.50-42,249.33-14,305.50

Finding the Fourth Proportional to 28,156.50, 42,249.33 and 14,305.50

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Solution

The fourth proportional to 28,156.50, 42,249.33 and 14,305.50 is: 21,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.50 : 42,249.33 = 14,305.50 : x
  2. Step 2: Convert to fraction form
    28,156.50/42,249.33 = 14,305.50/x
  3. Step 3: Cross multiply
    28,156.50x = 42,249.33 × 14,305.50
  4. Step 4: Simplify right side
    28,156.50x = 604,397,790.32
  5. Step 5: Solve for x
    x = 604,397,790.32/28,156.50
  6. Step 6: Final answer
    x = 21,465.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.