Home / 14,987.32-20,769.95-14,775.91

Finding the Fourth Proportional to 14,987.32, 20,769.95 and 14,775.91

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Solution

The fourth proportional to 14,987.32, 20,769.95 and 14,775.91 is: 20,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987.32 : 20,769.95 = 14,775.91 : x
  2. Step 2: Convert to fraction form
    14,987.32/20,769.95 = 14,775.91/x
  3. Step 3: Cross multiply
    14,987.32x = 20,769.95 × 14,775.91
  4. Step 4: Simplify right side
    14,987.32x = 306,894,911.90
  5. Step 5: Solve for x
    x = 306,894,911.90/14,987.32
  6. Step 6: Final answer
    x = 20,476.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.