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Finding the Fourth Proportional to 28,024.80, 42,037.02 and 8,303.46

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Solution

The fourth proportional to 28,024.80, 42,037.02 and 8,303.46 is: 12,455.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,024.80 : 42,037.02 = 8,303.46 : x
  2. Step 2: Convert to fraction form
    28,024.80/42,037.02 = 8,303.46/x
  3. Step 3: Cross multiply
    28,024.80x = 42,037.02 × 8,303.46
  4. Step 4: Simplify right side
    28,024.80x = 349,052,714.09
  5. Step 5: Solve for x
    x = 349,052,714.09/28,024.80
  6. Step 6: Final answer
    x = 12,455.14

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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.