Home / 32,640.05-45,040.70-18,489.35

Finding the Fourth Proportional to 32,640.05, 45,040.70 and 18,489.35

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Solution

The fourth proportional to 32,640.05, 45,040.70 and 18,489.35 is: 25,513.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,640.05 : 45,040.70 = 18,489.35 : x
  2. Step 2: Convert to fraction form
    32,640.05/45,040.70 = 18,489.35/x
  3. Step 3: Cross multiply
    32,640.05x = 45,040.70 × 18,489.35
  4. Step 4: Simplify right side
    32,640.05x = 832,772,948.89
  5. Step 5: Solve for x
    x = 832,772,948.89/32,640.05
  6. Step 6: Final answer
    x = 25,513.84

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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.