Home / 39,734.99-54,835.26-21,831.16

Finding the Fourth Proportional to 39,734.99, 54,835.26 and 21,831.16

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Solution

The fourth proportional to 39,734.99, 54,835.26 and 21,831.16 is: 30,127.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,734.99 : 54,835.26 = 21,831.16 : x
  2. Step 2: Convert to fraction form
    39,734.99/54,835.26 = 21,831.16/x
  3. Step 3: Cross multiply
    39,734.99x = 54,835.26 × 21,831.16
  4. Step 4: Simplify right side
    39,734.99x = 1,197,117,197.61
  5. Step 5: Solve for x
    x = 1,197,117,197.61/39,734.99
  6. Step 6: Final answer
    x = 30,127.53

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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.