Home / 19,276.20-28,871.10-10,031.40

Finding the Fourth Proportional to 19,276.20, 28,871.10 and 10,031.40

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Solution

The fourth proportional to 19,276.20, 28,871.10 and 10,031.40 is: 15,024.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.20 : 28,871.10 = 10,031.40 : x
  2. Step 2: Convert to fraction form
    19,276.20/28,871.10 = 10,031.40/x
  3. Step 3: Cross multiply
    19,276.20x = 28,871.10 × 10,031.40
  4. Step 4: Simplify right side
    19,276.20x = 289,617,552.54
  5. Step 5: Solve for x
    x = 289,617,552.54/19,276.20
  6. Step 6: Final answer
    x = 15,024.62

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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.