Home / 30,576.86-42,176.65-22,091.45

Finding the Fourth Proportional to 30,576.86, 42,176.65 and 22,091.45

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Solution

The fourth proportional to 30,576.86, 42,176.65 and 22,091.45 is: 30,472.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.86 : 42,176.65 = 22,091.45 : x
  2. Step 2: Convert to fraction form
    30,576.86/42,176.65 = 22,091.45/x
  3. Step 3: Cross multiply
    30,576.86x = 42,176.65 × 22,091.45
  4. Step 4: Simplify right side
    30,576.86x = 931,743,367.20
  5. Step 5: Solve for x
    x = 931,743,367.20/30,576.86
  6. Step 6: Final answer
    x = 30,472.17

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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.