Home / 30,904.05-42,647.45-16,756.91

Finding the Fourth Proportional to 30,904.05, 42,647.45 and 16,756.91

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Solution

The fourth proportional to 30,904.05, 42,647.45 and 16,756.91 is: 23,124.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,904.05 : 42,647.45 = 16,756.91 : x
  2. Step 2: Convert to fraction form
    30,904.05/42,647.45 = 16,756.91/x
  3. Step 3: Cross multiply
    30,904.05x = 42,647.45 × 16,756.91
  4. Step 4: Simplify right side
    30,904.05x = 714,639,481.38
  5. Step 5: Solve for x
    x = 714,639,481.38/30,904.05
  6. Step 6: Final answer
    x = 23,124.46

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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.