Home / 28,285.38-39,039.60-16,347.06

Finding the Fourth Proportional to 28,285.38, 39,039.60 and 16,347.06

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Solution

The fourth proportional to 28,285.38, 39,039.60 and 16,347.06 is: 22,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.38 : 39,039.60 = 16,347.06 : x
  2. Step 2: Convert to fraction form
    28,285.38/39,039.60 = 16,347.06/x
  3. Step 3: Cross multiply
    28,285.38x = 39,039.60 × 16,347.06
  4. Step 4: Simplify right side
    28,285.38x = 638,182,683.58
  5. Step 5: Solve for x
    x = 638,182,683.58/28,285.38
  6. Step 6: Final answer
    x = 22,562.28

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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.