Home / 30,907.77-42,652.35-16,760.45

Finding the Fourth Proportional to 30,907.77, 42,652.35 and 16,760.45

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Solution

The fourth proportional to 30,907.77, 42,652.35 and 16,760.45 is: 23,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.77 : 42,652.35 = 16,760.45 : x
  2. Step 2: Convert to fraction form
    30,907.77/42,652.35 = 16,760.45/x
  3. Step 3: Cross multiply
    30,907.77x = 42,652.35 × 16,760.45
  4. Step 4: Simplify right side
    30,907.77x = 714,872,366.30
  5. Step 5: Solve for x
    x = 714,872,366.30/30,907.77
  6. Step 6: Final answer
    x = 23,129.21

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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.