Home / 36,120.28-49,851.32-21,970.40

Finding the Fourth Proportional to 36,120.28, 49,851.32 and 21,970.40

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Solution

The fourth proportional to 36,120.28, 49,851.32 and 21,970.40 is: 30,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,120.28 : 49,851.32 = 21,970.40 : x
  2. Step 2: Convert to fraction form
    36,120.28/49,851.32 = 21,970.40/x
  3. Step 3: Cross multiply
    36,120.28x = 49,851.32 × 21,970.40
  4. Step 4: Simplify right side
    36,120.28x = 1,095,253,440.93
  5. Step 5: Solve for x
    x = 1,095,253,440.93/36,120.28
  6. Step 6: Final answer
    x = 30,322.40

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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.