Home / 28,508.12-42,767.32-9,783.32

Finding the Fourth Proportional to 28,508.12, 42,767.32 and 9,783.32

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Solution

The fourth proportional to 28,508.12, 42,767.32 and 9,783.32 is: 14,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.12 : 42,767.32 = 9,783.32 : x
  2. Step 2: Convert to fraction form
    28,508.12/42,767.32 = 9,783.32/x
  3. Step 3: Cross multiply
    28,508.12x = 42,767.32 × 9,783.32
  4. Step 4: Simplify right side
    28,508.12x = 418,406,377.10
  5. Step 5: Solve for x
    x = 418,406,377.10/28,508.12
  6. Step 6: Final answer
    x = 14,676.74

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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.