Home / 28,285.96-42,364.32-13,505.26

Finding the Fourth Proportional to 28,285.96, 42,364.32 and 13,505.26

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Solution

The fourth proportional to 28,285.96, 42,364.32 and 13,505.26 is: 20,227.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.96 : 42,364.32 = 13,505.26 : x
  2. Step 2: Convert to fraction form
    28,285.96/42,364.32 = 13,505.26/x
  3. Step 3: Cross multiply
    28,285.96x = 42,364.32 × 13,505.26
  4. Step 4: Simplify right side
    28,285.96x = 572,141,156.32
  5. Step 5: Solve for x
    x = 572,141,156.32/28,285.96
  6. Step 6: Final answer
    x = 20,227.04

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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.