Home / 25,831.80-35,643.51-15,223.53

Finding the Fourth Proportional to 25,831.80, 35,643.51 and 15,223.53

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Solution

The fourth proportional to 25,831.80, 35,643.51 and 15,223.53 is: 21,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,831.80 : 35,643.51 = 15,223.53 : x
  2. Step 2: Convert to fraction form
    25,831.80/35,643.51 = 15,223.53/x
  3. Step 3: Cross multiply
    25,831.80x = 35,643.51 × 15,223.53
  4. Step 4: Simplify right side
    25,831.80x = 542,620,043.79
  5. Step 5: Solve for x
    x = 542,620,043.79/25,831.80
  6. Step 6: Final answer
    x = 21,005.89

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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.