Home / 30,886.95-42,624.05-16,739.79

Finding the Fourth Proportional to 30,886.95, 42,624.05 and 16,739.79

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Solution

The fourth proportional to 30,886.95, 42,624.05 and 16,739.79 is: 23,100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.95 : 42,624.05 = 16,739.79 : x
  2. Step 2: Convert to fraction form
    30,886.95/42,624.05 = 16,739.79/x
  3. Step 3: Cross multiply
    30,886.95x = 42,624.05 × 16,739.79
  4. Step 4: Simplify right side
    30,886.95x = 713,517,562.25
  5. Step 5: Solve for x
    x = 713,517,562.25/30,886.95
  6. Step 6: Final answer
    x = 23,100.94

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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.