Home / 31,702.90-43,749.93-18,274.06

Finding the Fourth Proportional to 31,702.90, 43,749.93 and 18,274.06

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Solution

The fourth proportional to 31,702.90, 43,749.93 and 18,274.06 is: 25,218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,702.90 : 43,749.93 = 18,274.06 : x
  2. Step 2: Convert to fraction form
    31,702.90/43,749.93 = 18,274.06/x
  3. Step 3: Cross multiply
    31,702.90x = 43,749.93 × 18,274.06
  4. Step 4: Simplify right side
    31,702.90x = 799,488,754.45
  5. Step 5: Solve for x
    x = 799,488,754.45/31,702.90
  6. Step 6: Final answer
    x = 25,218.16

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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.