Home / 28,060.11-42,031.83-13,280.85

Finding the Fourth Proportional to 28,060.11, 42,031.83 and 13,280.85

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Solution

The fourth proportional to 28,060.11, 42,031.83 and 13,280.85 is: 19,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.11 : 42,031.83 = 13,280.85 : x
  2. Step 2: Convert to fraction form
    28,060.11/42,031.83 = 13,280.85/x
  3. Step 3: Cross multiply
    28,060.11x = 42,031.83 × 13,280.85
  4. Step 4: Simplify right side
    28,060.11x = 558,218,429.46
  5. Step 5: Solve for x
    x = 558,218,429.46/28,060.11
  6. Step 6: Final answer
    x = 19,893.67

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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.