Home / 31,620.16-47,407.17-18,274.33

Finding the Fourth Proportional to 31,620.16, 47,407.17 and 18,274.33

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Solution

The fourth proportional to 31,620.16, 47,407.17 and 18,274.33 is: 27,398.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,620.16 : 47,407.17 = 18,274.33 : x
  2. Step 2: Convert to fraction form
    31,620.16/47,407.17 = 18,274.33/x
  3. Step 3: Cross multiply
    31,620.16x = 47,407.17 × 18,274.33
  4. Step 4: Simplify right side
    31,620.16x = 866,334,268.95
  5. Step 5: Solve for x
    x = 866,334,268.95/31,620.16
  6. Step 6: Final answer
    x = 27,398.16

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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.