Home / 19,341-28,966.51-18,808.90

Finding the Fourth Proportional to 19,341, 28,966.51 and 18,808.90

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Solution

The fourth proportional to 19,341, 28,966.51 and 18,808.90 is: 28,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,341 : 28,966.51 = 18,808.90 : x
  2. Step 2: Convert to fraction form
    19,341/28,966.51 = 18,808.90/x
  3. Step 3: Cross multiply
    19,341x = 28,966.51 × 18,808.90
  4. Step 4: Simplify right side
    19,341x = 544,828,189.94
  5. Step 5: Solve for x
    x = 544,828,189.94/19,341
  6. Step 6: Final answer
    x = 28,169.60

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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.