Home / 31,114.63-42,938.19-16,967.57

Finding the Fourth Proportional to 31,114.63, 42,938.19 and 16,967.57

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Solution

The fourth proportional to 31,114.63, 42,938.19 and 16,967.57 is: 23,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,114.63 : 42,938.19 = 16,967.57 : x
  2. Step 2: Convert to fraction form
    31,114.63/42,938.19 = 16,967.57/x
  3. Step 3: Cross multiply
    31,114.63x = 42,938.19 × 16,967.57
  4. Step 4: Simplify right side
    31,114.63x = 728,556,659.66
  5. Step 5: Solve for x
    x = 728,556,659.66/31,114.63
  6. Step 6: Final answer
    x = 23,415.25

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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.