Home / 30,510.44-42,082.67-28,000.66

Finding the Fourth Proportional to 30,510.44, 42,082.67 and 28,000.66

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Solution

The fourth proportional to 30,510.44, 42,082.67 and 28,000.66 is: 38,620.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,510.44 : 42,082.67 = 28,000.66 : x
  2. Step 2: Convert to fraction form
    30,510.44/42,082.67 = 28,000.66/x
  3. Step 3: Cross multiply
    30,510.44x = 42,082.67 × 28,000.66
  4. Step 4: Simplify right side
    30,510.44x = 1,178,342,184.15
  5. Step 5: Solve for x
    x = 1,178,342,184.15/30,510.44
  6. Step 6: Final answer
    x = 38,620.95

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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.