Home / 30,854.03-42,520.21-22,341.74

Finding the Fourth Proportional to 30,854.03, 42,520.21 and 22,341.74

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Solution

The fourth proportional to 30,854.03, 42,520.21 and 22,341.74 is: 30,789.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.03 : 42,520.21 = 22,341.74 : x
  2. Step 2: Convert to fraction form
    30,854.03/42,520.21 = 22,341.74/x
  3. Step 3: Cross multiply
    30,854.03x = 42,520.21 × 22,341.74
  4. Step 4: Simplify right side
    30,854.03x = 949,975,208.11
  5. Step 5: Solve for x
    x = 949,975,208.11/30,854.03
  6. Step 6: Final answer
    x = 30,789.34

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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.