Home / 42,705.28-64,066.56-15,005.44

Finding the Fourth Proportional to 42,705.28, 64,066.56 and 15,005.44

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Solution

The fourth proportional to 42,705.28, 64,066.56 and 15,005.44 is: 22,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,705.28 : 64,066.56 = 15,005.44 : x
  2. Step 2: Convert to fraction form
    42,705.28/64,066.56 = 15,005.44/x
  3. Step 3: Cross multiply
    42,705.28x = 64,066.56 × 15,005.44
  4. Step 4: Simplify right side
    42,705.28x = 961,346,922.09
  5. Step 5: Solve for x
    x = 961,346,922.09/42,705.28
  6. Step 6: Final answer
    x = 22,511.20

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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.