Home / 21,953.22-30,295.92-13,000.56

Finding the Fourth Proportional to 21,953.22, 30,295.92 and 13,000.56

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Solution

The fourth proportional to 21,953.22, 30,295.92 and 13,000.56 is: 17,941.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,953.22 : 30,295.92 = 13,000.56 : x
  2. Step 2: Convert to fraction form
    21,953.22/30,295.92 = 13,000.56/x
  3. Step 3: Cross multiply
    21,953.22x = 30,295.92 × 13,000.56
  4. Step 4: Simplify right side
    21,953.22x = 393,863,925.72
  5. Step 5: Solve for x
    x = 393,863,925.72/21,953.22
  6. Step 6: Final answer
    x = 17,941.05

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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.