Home / 42,618.63-58,820.64-25,640.03

Finding the Fourth Proportional to 42,618.63, 58,820.64 and 25,640.03

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Solution

The fourth proportional to 42,618.63, 58,820.64 and 25,640.03 is: 35,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,618.63 : 58,820.64 = 25,640.03 : x
  2. Step 2: Convert to fraction form
    42,618.63/58,820.64 = 25,640.03/x
  3. Step 3: Cross multiply
    42,618.63x = 58,820.64 × 25,640.03
  4. Step 4: Simplify right side
    42,618.63x = 1,508,163,121.27
  5. Step 5: Solve for x
    x = 1,508,163,121.27/42,618.63
  6. Step 6: Final answer
    x = 35,387.41

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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.