Home / 28,012.57-42,031.61-10,483.76

Finding the Fourth Proportional to 28,012.57, 42,031.61 and 10,483.76

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Solution

The fourth proportional to 28,012.57, 42,031.61 and 10,483.76 is: 15,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.57 : 42,031.61 = 10,483.76 : x
  2. Step 2: Convert to fraction form
    28,012.57/42,031.61 = 10,483.76/x
  3. Step 3: Cross multiply
    28,012.57x = 42,031.61 × 10,483.76
  4. Step 4: Simplify right side
    28,012.57x = 440,649,311.65
  5. Step 5: Solve for x
    x = 440,649,311.65/28,012.57
  6. Step 6: Final answer
    x = 15,730.41

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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.