Home / 42,823.46-64,235.66-19,132.21

Finding the Fourth Proportional to 42,823.46, 64,235.66 and 19,132.21

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Solution

The fourth proportional to 42,823.46, 64,235.66 and 19,132.21 is: 28,698.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,823.46 : 64,235.66 = 19,132.21 : x
  2. Step 2: Convert to fraction form
    42,823.46/64,235.66 = 19,132.21/x
  3. Step 3: Cross multiply
    42,823.46x = 64,235.66 × 19,132.21
  4. Step 4: Simplify right side
    42,823.46x = 1,228,970,136.61
  5. Step 5: Solve for x
    x = 1,228,970,136.61/42,823.46
  6. Step 6: Final answer
    x = 28,698.52

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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.