Home / 19,569.88-29,355.18-4,778.92

Finding the Fourth Proportional to 19,569.88, 29,355.18 and 4,778.92

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Solution

The fourth proportional to 19,569.88, 29,355.18 and 4,778.92 is: 7,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,569.88 : 29,355.18 = 4,778.92 : x
  2. Step 2: Convert to fraction form
    19,569.88/29,355.18 = 4,778.92/x
  3. Step 3: Cross multiply
    19,569.88x = 29,355.18 × 4,778.92
  4. Step 4: Simplify right side
    19,569.88x = 140,286,056.81
  5. Step 5: Solve for x
    x = 140,286,056.81/19,569.88
  6. Step 6: Final answer
    x = 7,168.47

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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.