Home / 30,779.97-42,473.80-17,354.53

Finding the Fourth Proportional to 30,779.97, 42,473.80 and 17,354.53

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Solution

The fourth proportional to 30,779.97, 42,473.80 and 17,354.53 is: 23,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,779.97 : 42,473.80 = 17,354.53 : x
  2. Step 2: Convert to fraction form
    30,779.97/42,473.80 = 17,354.53/x
  3. Step 3: Cross multiply
    30,779.97x = 42,473.80 × 17,354.53
  4. Step 4: Simplify right side
    30,779.97x = 737,112,836.31
  5. Step 5: Solve for x
    x = 737,112,836.31/30,779.97
  6. Step 6: Final answer
    x = 23,947.81

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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.