Home / 19,739.79-29,630.75-8,500.70

Finding the Fourth Proportional to 19,739.79, 29,630.75 and 8,500.70

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Solution

The fourth proportional to 19,739.79, 29,630.75 and 8,500.70 is: 12,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.79 : 29,630.75 = 8,500.70 : x
  2. Step 2: Convert to fraction form
    19,739.79/29,630.75 = 8,500.70/x
  3. Step 3: Cross multiply
    19,739.79x = 29,630.75 × 8,500.70
  4. Step 4: Simplify right side
    19,739.79x = 251,881,925.87
  5. Step 5: Solve for x
    x = 251,881,925.87/19,739.79
  6. Step 6: Final answer
    x = 12,760.11

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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.