Home / 31,235.36-43,125.60-18,492.68

Finding the Fourth Proportional to 31,235.36, 43,125.60 and 18,492.68

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Solution

The fourth proportional to 31,235.36, 43,125.60 and 18,492.68 is: 25,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,235.36 : 43,125.60 = 18,492.68 : x
  2. Step 2: Convert to fraction form
    31,235.36/43,125.60 = 18,492.68/x
  3. Step 3: Cross multiply
    31,235.36x = 43,125.60 × 18,492.68
  4. Step 4: Simplify right side
    31,235.36x = 797,507,920.61
  5. Step 5: Solve for x
    x = 797,507,920.61/31,235.36
  6. Step 6: Final answer
    x = 25,532.21

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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.