Home / 40,128.16-55,370.95-23,131.07

Finding the Fourth Proportional to 40,128.16, 55,370.95 and 23,131.07

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Solution

The fourth proportional to 40,128.16, 55,370.95 and 23,131.07 is: 31,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128.16 : 55,370.95 = 23,131.07 : x
  2. Step 2: Convert to fraction form
    40,128.16/55,370.95 = 23,131.07/x
  3. Step 3: Cross multiply
    40,128.16x = 55,370.95 × 23,131.07
  4. Step 4: Simplify right side
    40,128.16x = 1,280,789,320.42
  5. Step 5: Solve for x
    x = 1,280,789,320.42/40,128.16
  6. Step 6: Final answer
    x = 31,917.47

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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.