Home / 15,888.24-21,652.44-15,829.92

Finding the Fourth Proportional to 15,888.24, 21,652.44 and 15,829.92

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Solution

The fourth proportional to 15,888.24, 21,652.44 and 15,829.92 is: 21,572.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.24 : 21,652.44 = 15,829.92 : x
  2. Step 2: Convert to fraction form
    15,888.24/21,652.44 = 15,829.92/x
  3. Step 3: Cross multiply
    15,888.24x = 21,652.44 × 15,829.92
  4. Step 4: Simplify right side
    15,888.24x = 342,756,393.00
  5. Step 5: Solve for x
    x = 342,756,393.00/15,888.24
  6. Step 6: Final answer
    x = 21,572.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.