Home / 21,300.62-31,950.93-5,718.24

Finding the Fourth Proportional to 21,300.62, 31,950.93 and 5,718.24

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Solution

The fourth proportional to 21,300.62, 31,950.93 and 5,718.24 is: 8,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,300.62 : 31,950.93 = 5,718.24 : x
  2. Step 2: Convert to fraction form
    21,300.62/31,950.93 = 5,718.24/x
  3. Step 3: Cross multiply
    21,300.62x = 31,950.93 × 5,718.24
  4. Step 4: Simplify right side
    21,300.62x = 182,703,085.96
  5. Step 5: Solve for x
    x = 182,703,085.96/21,300.62
  6. Step 6: Final answer
    x = 8,577.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.