Home / 19,210.90-28,816.35-17,785.30

Finding the Fourth Proportional to 19,210.90, 28,816.35 and 17,785.30

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Solution

The fourth proportional to 19,210.90, 28,816.35 and 17,785.30 is: 26,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.90 : 28,816.35 = 17,785.30 : x
  2. Step 2: Convert to fraction form
    19,210.90/28,816.35 = 17,785.30/x
  3. Step 3: Cross multiply
    19,210.90x = 28,816.35 × 17,785.30
  4. Step 4: Simplify right side
    19,210.90x = 512,507,429.66
  5. Step 5: Solve for x
    x = 512,507,429.66/19,210.90
  6. Step 6: Final answer
    x = 26,677.95

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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.