Home / 36,990.63-51,043.77-20,859.06

Finding the Fourth Proportional to 36,990.63, 51,043.77 and 20,859.06

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Solution

The fourth proportional to 36,990.63, 51,043.77 and 20,859.06 is: 28,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990.63 : 51,043.77 = 20,859.06 : x
  2. Step 2: Convert to fraction form
    36,990.63/51,043.77 = 20,859.06/x
  3. Step 3: Cross multiply
    36,990.63x = 51,043.77 × 20,859.06
  4. Step 4: Simplify right side
    36,990.63x = 1,064,725,061.06
  5. Step 5: Solve for x
    x = 1,064,725,061.06/36,990.63
  6. Step 6: Final answer
    x = 28,783.64

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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.