Home / 30,840.89-42,560.39-16,693.70

Finding the Fourth Proportional to 30,840.89, 42,560.39 and 16,693.70

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Solution

The fourth proportional to 30,840.89, 42,560.39 and 16,693.70 is: 23,037.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,840.89 : 42,560.39 = 16,693.70 : x
  2. Step 2: Convert to fraction form
    30,840.89/42,560.39 = 16,693.70/x
  3. Step 3: Cross multiply
    30,840.89x = 42,560.39 × 16,693.70
  4. Step 4: Simplify right side
    30,840.89x = 710,490,382.54
  5. Step 5: Solve for x
    x = 710,490,382.54/30,840.89
  6. Step 6: Final answer
    x = 23,037.29

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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.