Home / 30,907.74-42,652.56-16,760.58

Finding the Fourth Proportional to 30,907.74, 42,652.56 and 16,760.58

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Solution

The fourth proportional to 30,907.74, 42,652.56 and 16,760.58 is: 23,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.74 : 42,652.56 = 16,760.58 : x
  2. Step 2: Convert to fraction form
    30,907.74/42,652.56 = 16,760.58/x
  3. Step 3: Cross multiply
    30,907.74x = 42,652.56 × 16,760.58
  4. Step 4: Simplify right side
    30,907.74x = 714,881,644.08
  5. Step 5: Solve for x
    x = 714,881,644.08/30,907.74
  6. Step 6: Final answer
    x = 23,129.53

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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.