Home / 42,376.64-63,558.20-11,214.32

Finding the Fourth Proportional to 42,376.64, 63,558.20 and 11,214.32

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Solution

The fourth proportional to 42,376.64, 63,558.20 and 11,214.32 is: 16,819.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,376.64 : 63,558.20 = 11,214.32 : x
  2. Step 2: Convert to fraction form
    42,376.64/63,558.20 = 11,214.32/x
  3. Step 3: Cross multiply
    42,376.64x = 63,558.20 × 11,214.32
  4. Step 4: Simplify right side
    42,376.64x = 712,761,703.67
  5. Step 5: Solve for x
    x = 712,761,703.67/42,376.64
  6. Step 6: Final answer
    x = 16,819.69

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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.