Home / 31,316.59-43,218.66-18,577.32

Finding the Fourth Proportional to 31,316.59, 43,218.66 and 18,577.32

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Solution

The fourth proportional to 31,316.59, 43,218.66 and 18,577.32 is: 25,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,316.59 : 43,218.66 = 18,577.32 : x
  2. Step 2: Convert to fraction form
    31,316.59/43,218.66 = 18,577.32/x
  3. Step 3: Cross multiply
    31,316.59x = 43,218.66 × 18,577.32
  4. Step 4: Simplify right side
    31,316.59x = 802,886,784.39
  5. Step 5: Solve for x
    x = 802,886,784.39/31,316.59
  6. Step 6: Final answer
    x = 25,637.75

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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.