Home / 28,468.10-42,714.95-12,877.70

Finding the Fourth Proportional to 28,468.10, 42,714.95 and 12,877.70

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Solution

The fourth proportional to 28,468.10, 42,714.95 and 12,877.70 is: 19,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.10 : 42,714.95 = 12,877.70 : x
  2. Step 2: Convert to fraction form
    28,468.10/42,714.95 = 12,877.70/x
  3. Step 3: Cross multiply
    28,468.10x = 42,714.95 × 12,877.70
  4. Step 4: Simplify right side
    28,468.10x = 550,070,311.62
  5. Step 5: Solve for x
    x = 550,070,311.62/28,468.10
  6. Step 6: Final answer
    x = 19,322.34

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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.