Home / 20,669.95-28,526.75-11,716.48

Finding the Fourth Proportional to 20,669.95, 28,526.75 and 11,716.48

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Solution

The fourth proportional to 20,669.95, 28,526.75 and 11,716.48 is: 16,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.95 : 28,526.75 = 11,716.48 : x
  2. Step 2: Convert to fraction form
    20,669.95/28,526.75 = 11,716.48/x
  3. Step 3: Cross multiply
    20,669.95x = 28,526.75 × 11,716.48
  4. Step 4: Simplify right side
    20,669.95x = 334,233,095.84
  5. Step 5: Solve for x
    x = 334,233,095.84/20,669.95
  6. Step 6: Final answer
    x = 16,170.00

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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.