Home / 23,126.10-31,913.90-12,515.64

Finding the Fourth Proportional to 23,126.10, 31,913.90 and 12,515.64

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Solution

The fourth proportional to 23,126.10, 31,913.90 and 12,515.64 is: 17,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126.10 : 31,913.90 = 12,515.64 : x
  2. Step 2: Convert to fraction form
    23,126.10/31,913.90 = 12,515.64/x
  3. Step 3: Cross multiply
    23,126.10x = 31,913.90 × 12,515.64
  4. Step 4: Simplify right side
    23,126.10x = 399,422,883.40
  5. Step 5: Solve for x
    x = 399,422,883.40/23,126.10
  6. Step 6: Final answer
    x = 17,271.52

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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.