Home / 31,172.45-46,749.56-16,938.72

Finding the Fourth Proportional to 31,172.45, 46,749.56 and 16,938.72

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Solution

The fourth proportional to 31,172.45, 46,749.56 and 16,938.72 is: 25,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,172.45 : 46,749.56 = 16,938.72 : x
  2. Step 2: Convert to fraction form
    31,172.45/46,749.56 = 16,938.72/x
  3. Step 3: Cross multiply
    31,172.45x = 46,749.56 × 16,938.72
  4. Step 4: Simplify right side
    31,172.45x = 791,877,622.27
  5. Step 5: Solve for x
    x = 791,877,622.27/31,172.45
  6. Step 6: Final answer
    x = 25,403.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.