Home / 31,473.51-43,418.77-18,719.52

Finding the Fourth Proportional to 31,473.51, 43,418.77 and 18,719.52

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Solution

The fourth proportional to 31,473.51, 43,418.77 and 18,719.52 is: 25,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,473.51 : 43,418.77 = 18,719.52 : x
  2. Step 2: Convert to fraction form
    31,473.51/43,418.77 = 18,719.52/x
  3. Step 3: Cross multiply
    31,473.51x = 43,418.77 × 18,719.52
  4. Step 4: Simplify right side
    31,473.51x = 812,778,323.77
  5. Step 5: Solve for x
    x = 812,778,323.77/31,473.51
  6. Step 6: Final answer
    x = 25,824.21

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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.