Home / 20,554.53-30,831.80-4,972.16

Finding the Fourth Proportional to 20,554.53, 30,831.80 and 4,972.16

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Solution

The fourth proportional to 20,554.53, 30,831.80 and 4,972.16 is: 7,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.53 : 30,831.80 = 4,972.16 : x
  2. Step 2: Convert to fraction form
    20,554.53/30,831.80 = 4,972.16/x
  3. Step 3: Cross multiply
    20,554.53x = 30,831.80 × 4,972.16
  4. Step 4: Simplify right side
    20,554.53x = 153,300,642.69
  5. Step 5: Solve for x
    x = 153,300,642.69/20,554.53
  6. Step 6: Final answer
    x = 7,458.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.