Home / 30,907.50-42,652.35-16,760.36

Finding the Fourth Proportional to 30,907.50, 42,652.35 and 16,760.36

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Solution

The fourth proportional to 30,907.50, 42,652.35 and 16,760.36 is: 23,129.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.50 : 42,652.35 = 16,760.36 : x
  2. Step 2: Convert to fraction form
    30,907.50/42,652.35 = 16,760.36/x
  3. Step 3: Cross multiply
    30,907.50x = 42,652.35 × 16,760.36
  4. Step 4: Simplify right side
    30,907.50x = 714,868,527.58
  5. Step 5: Solve for x
    x = 714,868,527.58/30,907.50
  6. Step 6: Final answer
    x = 23,129.29

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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.