Home / 20,767.66-28,666.20-16,526.50

Finding the Fourth Proportional to 20,767.66, 28,666.20 and 16,526.50

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Solution

The fourth proportional to 20,767.66, 28,666.20 and 16,526.50 is: 22,812.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.66 : 28,666.20 = 16,526.50 : x
  2. Step 2: Convert to fraction form
    20,767.66/28,666.20 = 16,526.50/x
  3. Step 3: Cross multiply
    20,767.66x = 28,666.20 × 16,526.50
  4. Step 4: Simplify right side
    20,767.66x = 473,751,944.61
  5. Step 5: Solve for x
    x = 473,751,944.61/20,767.66
  6. Step 6: Final answer
    x = 22,812.01

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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.