Home / 19,147.76-28,533.70-18,521.36

Finding the Fourth Proportional to 19,147.76, 28,533.70 and 18,521.36

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Solution

The fourth proportional to 19,147.76, 28,533.70 and 18,521.36 is: 27,600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.76 : 28,533.70 = 18,521.36 : x
  2. Step 2: Convert to fraction form
    19,147.76/28,533.70 = 18,521.36/x
  3. Step 3: Cross multiply
    19,147.76x = 28,533.70 × 18,521.36
  4. Step 4: Simplify right side
    19,147.76x = 528,482,929.83
  5. Step 5: Solve for x
    x = 528,482,929.83/19,147.76
  6. Step 6: Final answer
    x = 27,600.25

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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.