Home / 19,350.86-28,865.61-18,702.99

Finding the Fourth Proportional to 19,350.86, 28,865.61 and 18,702.99

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Solution

The fourth proportional to 19,350.86, 28,865.61 and 18,702.99 is: 27,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,350.86 : 28,865.61 = 18,702.99 : x
  2. Step 2: Convert to fraction form
    19,350.86/28,865.61 = 18,702.99/x
  3. Step 3: Cross multiply
    19,350.86x = 28,865.61 × 18,702.99
  4. Step 4: Simplify right side
    19,350.86x = 539,873,215.17
  5. Step 5: Solve for x
    x = 539,873,215.17/19,350.86
  6. Step 6: Final answer
    x = 27,899.19

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.