Home / 30,628.04-42,135.46-29,315.84

Finding the Fourth Proportional to 30,628.04, 42,135.46 and 29,315.84

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Solution

The fourth proportional to 30,628.04, 42,135.46 and 29,315.84 is: 40,330.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,628.04 : 42,135.46 = 29,315.84 : x
  2. Step 2: Convert to fraction form
    30,628.04/42,135.46 = 29,315.84/x
  3. Step 3: Cross multiply
    30,628.04x = 42,135.46 × 29,315.84
  4. Step 4: Simplify right side
    30,628.04x = 1,235,236,119.72
  5. Step 5: Solve for x
    x = 1,235,236,119.72/30,628.04
  6. Step 6: Final answer
    x = 40,330.24

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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.