Home / 31,627.29-43,638.47-18,884.60

Finding the Fourth Proportional to 31,627.29, 43,638.47 and 18,884.60

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Solution

The fourth proportional to 31,627.29, 43,638.47 and 18,884.60 is: 26,056.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,627.29 : 43,638.47 = 18,884.60 : x
  2. Step 2: Convert to fraction form
    31,627.29/43,638.47 = 18,884.60/x
  3. Step 3: Cross multiply
    31,627.29x = 43,638.47 × 18,884.60
  4. Step 4: Simplify right side
    31,627.29x = 824,095,148.25
  5. Step 5: Solve for x
    x = 824,095,148.25/31,627.29
  6. Step 6: Final answer
    x = 26,056.45

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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.