Home / 30,980.18-42,752.58-16,833.08

Finding the Fourth Proportional to 30,980.18, 42,752.58 and 16,833.08

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Solution

The fourth proportional to 30,980.18, 42,752.58 and 16,833.08 is: 23,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,980.18 : 42,752.58 = 16,833.08 : x
  2. Step 2: Convert to fraction form
    30,980.18/42,752.58 = 16,833.08/x
  3. Step 3: Cross multiply
    30,980.18x = 42,752.58 × 16,833.08
  4. Step 4: Simplify right side
    30,980.18x = 719,657,599.35
  5. Step 5: Solve for x
    x = 719,657,599.35/30,980.18
  6. Step 6: Final answer
    x = 23,229.61

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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.