Home / 19,218.80-28,763.40-17,663.60

Finding the Fourth Proportional to 19,218.80, 28,763.40 and 17,663.60

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Solution

The fourth proportional to 19,218.80, 28,763.40 and 17,663.60 is: 26,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.80 : 28,763.40 = 17,663.60 : x
  2. Step 2: Convert to fraction form
    19,218.80/28,763.40 = 17,663.60/x
  3. Step 3: Cross multiply
    19,218.80x = 28,763.40 × 17,663.60
  4. Step 4: Simplify right side
    19,218.80x = 508,065,192.24
  5. Step 5: Solve for x
    x = 508,065,192.24/19,218.80
  6. Step 6: Final answer
    x = 26,435.84

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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.