Home / 28,451.77-42,676.05-8,730.28

Finding the Fourth Proportional to 28,451.77, 42,676.05 and 8,730.28

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Solution

The fourth proportional to 28,451.77, 42,676.05 and 8,730.28 is: 13,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.77 : 42,676.05 = 8,730.28 : x
  2. Step 2: Convert to fraction form
    28,451.77/42,676.05 = 8,730.28/x
  3. Step 3: Cross multiply
    28,451.77x = 42,676.05 × 8,730.28
  4. Step 4: Simplify right side
    28,451.77x = 372,573,865.79
  5. Step 5: Solve for x
    x = 372,573,865.79/28,451.77
  6. Step 6: Final answer
    x = 13,094.93

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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.