Home / 28,031.50-42,047.25-11,400.58

Finding the Fourth Proportional to 28,031.50, 42,047.25 and 11,400.58

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Solution

The fourth proportional to 28,031.50, 42,047.25 and 11,400.58 is: 17,100.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.50 : 42,047.25 = 11,400.58 : x
  2. Step 2: Convert to fraction form
    28,031.50/42,047.25 = 11,400.58/x
  3. Step 3: Cross multiply
    28,031.50x = 42,047.25 × 11,400.58
  4. Step 4: Simplify right side
    28,031.50x = 479,363,037.41
  5. Step 5: Solve for x
    x = 479,363,037.41/28,031.50
  6. Step 6: Final answer
    x = 17,100.87

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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.