Home / 34,145.20-47,120.74-19,806.00

Finding the Fourth Proportional to 34,145.20, 47,120.74 and 19,806.00

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Solution

The fourth proportional to 34,145.20, 47,120.74 and 19,806.00 is: 27,332.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,145.20 : 47,120.74 = 19,806.00 : x
  2. Step 2: Convert to fraction form
    34,145.20/47,120.74 = 19,806.00/x
  3. Step 3: Cross multiply
    34,145.20x = 47,120.74 × 19,806.00
  4. Step 4: Simplify right side
    34,145.20x = 933,273,415.28
  5. Step 5: Solve for x
    x = 933,273,415.28/34,145.20
  6. Step 6: Final answer
    x = 27,332.50

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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.