Home / 30,079.38-45,123.45-9,304.50

Finding the Fourth Proportional to 30,079.38, 45,123.45 and 9,304.50

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Solution

The fourth proportional to 30,079.38, 45,123.45 and 9,304.50 is: 13,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.38 : 45,123.45 = 9,304.50 : x
  2. Step 2: Convert to fraction form
    30,079.38/45,123.45 = 9,304.50/x
  3. Step 3: Cross multiply
    30,079.38x = 45,123.45 × 9,304.50
  4. Step 4: Simplify right side
    30,079.38x = 419,851,140.53
  5. Step 5: Solve for x
    x = 419,851,140.53/30,079.38
  6. Step 6: Final answer
    x = 13,958.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.