Home / 20,289.08-28,018.08-19,184.64

Finding the Fourth Proportional to 20,289.08, 28,018.08 and 19,184.64

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Solution

The fourth proportional to 20,289.08, 28,018.08 and 19,184.64 is: 26,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.08 : 28,018.08 = 19,184.64 : x
  2. Step 2: Convert to fraction form
    20,289.08/28,018.08 = 19,184.64/x
  3. Step 3: Cross multiply
    20,289.08x = 28,018.08 × 19,184.64
  4. Step 4: Simplify right side
    20,289.08x = 537,516,778.29
  5. Step 5: Solve for x
    x = 537,516,778.29/20,289.08
  6. Step 6: Final answer
    x = 26,492.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.