Home / 19,031.00-28,550.60-7,938.81

Finding the Fourth Proportional to 19,031.00, 28,550.60 and 7,938.81

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Solution

The fourth proportional to 19,031.00, 28,550.60 and 7,938.81 is: 11,909.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.00 : 28,550.60 = 7,938.81 : x
  2. Step 2: Convert to fraction form
    19,031.00/28,550.60 = 7,938.81/x
  3. Step 3: Cross multiply
    19,031.00x = 28,550.60 × 7,938.81
  4. Step 4: Simplify right side
    19,031.00x = 226,657,801.19
  5. Step 5: Solve for x
    x = 226,657,801.19/19,031.00
  6. Step 6: Final answer
    x = 11,909.93

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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.