Home / 31,467.72-43,420.46-18,036.40

Finding the Fourth Proportional to 31,467.72, 43,420.46 and 18,036.40

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Solution

The fourth proportional to 31,467.72, 43,420.46 and 18,036.40 is: 24,887.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,467.72 : 43,420.46 = 18,036.40 : x
  2. Step 2: Convert to fraction form
    31,467.72/43,420.46 = 18,036.40/x
  3. Step 3: Cross multiply
    31,467.72x = 43,420.46 × 18,036.40
  4. Step 4: Simplify right side
    31,467.72x = 783,148,784.74
  5. Step 5: Solve for x
    x = 783,148,784.74/31,467.72
  6. Step 6: Final answer
    x = 24,887.37

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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.