Home / 19,320.80-29,024.40-18,533.60

Finding the Fourth Proportional to 19,320.80, 29,024.40 and 18,533.60

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Solution

The fourth proportional to 19,320.80, 29,024.40 and 18,533.60 is: 27,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.80 : 29,024.40 = 18,533.60 : x
  2. Step 2: Convert to fraction form
    19,320.80/29,024.40 = 18,533.60/x
  3. Step 3: Cross multiply
    19,320.80x = 29,024.40 × 18,533.60
  4. Step 4: Simplify right side
    19,320.80x = 537,926,619.84
  5. Step 5: Solve for x
    x = 537,926,619.84/19,320.80
  6. Step 6: Final answer
    x = 27,841.84

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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.