Home / 20,662.16-28,527.51-15,873.57

Finding the Fourth Proportional to 20,662.16, 28,527.51 and 15,873.57

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Solution

The fourth proportional to 20,662.16, 28,527.51 and 15,873.57 is: 21,916.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662.16 : 28,527.51 = 15,873.57 : x
  2. Step 2: Convert to fraction form
    20,662.16/28,527.51 = 15,873.57/x
  3. Step 3: Cross multiply
    20,662.16x = 28,527.51 × 15,873.57
  4. Step 4: Simplify right side
    20,662.16x = 452,833,347.54
  5. Step 5: Solve for x
    x = 452,833,347.54/20,662.16
  6. Step 6: Final answer
    x = 21,916.08

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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.