Home / 30,842.16-42,562.44-16,695.28

Finding the Fourth Proportional to 30,842.16, 42,562.44 and 16,695.28

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Solution

The fourth proportional to 30,842.16, 42,562.44 and 16,695.28 is: 23,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,842.16 : 42,562.44 = 16,695.28 : x
  2. Step 2: Convert to fraction form
    30,842.16/42,562.44 = 16,695.28/x
  3. Step 3: Cross multiply
    30,842.16x = 42,562.44 × 16,695.28
  4. Step 4: Simplify right side
    30,842.16x = 710,591,853.28
  5. Step 5: Solve for x
    x = 710,591,853.28/30,842.16
  6. Step 6: Final answer
    x = 23,039.63

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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.