Home / 19,478.48-29,239.58-7,799.90

Finding the Fourth Proportional to 19,478.48, 29,239.58 and 7,799.90

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Solution

The fourth proportional to 19,478.48, 29,239.58 and 7,799.90 is: 11,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.48 : 29,239.58 = 7,799.90 : x
  2. Step 2: Convert to fraction form
    19,478.48/29,239.58 = 7,799.90/x
  3. Step 3: Cross multiply
    19,478.48x = 29,239.58 × 7,799.90
  4. Step 4: Simplify right side
    19,478.48x = 228,065,673.34
  5. Step 5: Solve for x
    x = 228,065,673.34/19,478.48
  6. Step 6: Final answer
    x = 11,708.60

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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.