Home / 17,931.42-24,730.64-15,916.31

Finding the Fourth Proportional to 17,931.42, 24,730.64 and 15,916.31

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Solution

The fourth proportional to 17,931.42, 24,730.64 and 15,916.31 is: 21,951.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,931.42 : 24,730.64 = 15,916.31 : x
  2. Step 2: Convert to fraction form
    17,931.42/24,730.64 = 15,916.31/x
  3. Step 3: Cross multiply
    17,931.42x = 24,730.64 × 15,916.31
  4. Step 4: Simplify right side
    17,931.42x = 393,620,422.24
  5. Step 5: Solve for x
    x = 393,620,422.24/17,931.42
  6. Step 6: Final answer
    x = 21,951.44

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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.