Home / 30,574.87-42,173.89-22,089.45

Finding the Fourth Proportional to 30,574.87, 42,173.89 and 22,089.45

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Solution

The fourth proportional to 30,574.87, 42,173.89 and 22,089.45 is: 30,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.87 : 42,173.89 = 22,089.45 : x
  2. Step 2: Convert to fraction form
    30,574.87/42,173.89 = 22,089.45/x
  3. Step 3: Cross multiply
    30,574.87x = 42,173.89 × 22,089.45
  4. Step 4: Simplify right side
    30,574.87x = 931,598,034.46
  5. Step 5: Solve for x
    x = 931,598,034.46/30,574.87
  6. Step 6: Final answer
    x = 30,469.40

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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.