Home / 40,148.37-55,430.19-25,814.88

Finding the Fourth Proportional to 40,148.37, 55,430.19 and 25,814.88

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Solution

The fourth proportional to 40,148.37, 55,430.19 and 25,814.88 is: 35,640.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,148.37 : 55,430.19 = 25,814.88 : x
  2. Step 2: Convert to fraction form
    40,148.37/55,430.19 = 25,814.88/x
  3. Step 3: Cross multiply
    40,148.37x = 55,430.19 × 25,814.88
  4. Step 4: Simplify right side
    40,148.37x = 1,430,923,703.23
  5. Step 5: Solve for x
    x = 1,430,923,703.23/40,148.37
  6. Step 6: Final answer
    x = 35,640.89

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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.