Home / 42,914.16-64,345.14-19,217.34

Finding the Fourth Proportional to 42,914.16, 64,345.14 and 19,217.34

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Solution

The fourth proportional to 42,914.16, 64,345.14 and 19,217.34 is: 28,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,914.16 : 64,345.14 = 19,217.34 : x
  2. Step 2: Convert to fraction form
    42,914.16/64,345.14 = 19,217.34/x
  3. Step 3: Cross multiply
    42,914.16x = 64,345.14 × 19,217.34
  4. Step 4: Simplify right side
    42,914.16x = 1,236,542,432.73
  5. Step 5: Solve for x
    x = 1,236,542,432.73/42,914.16
  6. Step 6: Final answer
    x = 28,814.32

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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.