Home / 47,210.09-70,782.33-20,900.48

Finding the Fourth Proportional to 47,210.09, 70,782.33 and 20,900.48

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Solution

The fourth proportional to 47,210.09, 70,782.33 and 20,900.48 is: 31,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,210.09 : 70,782.33 = 20,900.48 : x
  2. Step 2: Convert to fraction form
    47,210.09/70,782.33 = 20,900.48/x
  3. Step 3: Cross multiply
    47,210.09x = 70,782.33 × 20,900.48
  4. Step 4: Simplify right side
    47,210.09x = 1,479,384,672.52
  5. Step 5: Solve for x
    x = 1,479,384,672.52/47,210.09
  6. Step 6: Final answer
    x = 31,336.20

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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.