Home / 30,426.80-42,203.79-29,617.61

Finding the Fourth Proportional to 30,426.80, 42,203.79 and 29,617.61

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Solution

The fourth proportional to 30,426.80, 42,203.79 and 29,617.61 is: 41,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.80 : 42,203.79 = 29,617.61 : x
  2. Step 2: Convert to fraction form
    30,426.80/42,203.79 = 29,617.61/x
  3. Step 3: Cross multiply
    30,426.80x = 42,203.79 × 29,617.61
  4. Step 4: Simplify right side
    30,426.80x = 1,249,975,392.74
  5. Step 5: Solve for x
    x = 1,249,975,392.74/30,426.80
  6. Step 6: Final answer
    x = 41,081.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.