Home / 19,810.20-29,666.70-13,200.60

Finding the Fourth Proportional to 19,810.20, 29,666.70 and 13,200.60

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Solution

The fourth proportional to 19,810.20, 29,666.70 and 13,200.60 is: 19,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.20 : 29,666.70 = 13,200.60 : x
  2. Step 2: Convert to fraction form
    19,810.20/29,666.70 = 13,200.60/x
  3. Step 3: Cross multiply
    19,810.20x = 29,666.70 × 13,200.60
  4. Step 4: Simplify right side
    19,810.20x = 391,618,240.02
  5. Step 5: Solve for x
    x = 391,618,240.02/19,810.20
  6. Step 6: Final answer
    x = 19,768.52

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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.