Home / 34,729.23-47,928.36-19,621.50

Finding the Fourth Proportional to 34,729.23, 47,928.36 and 19,621.50

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Solution

The fourth proportional to 34,729.23, 47,928.36 and 19,621.50 is: 27,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,729.23 : 47,928.36 = 19,621.50 : x
  2. Step 2: Convert to fraction form
    34,729.23/47,928.36 = 19,621.50/x
  3. Step 3: Cross multiply
    34,729.23x = 47,928.36 × 19,621.50
  4. Step 4: Simplify right side
    34,729.23x = 940,426,315.74
  5. Step 5: Solve for x
    x = 940,426,315.74/34,729.23
  6. Step 6: Final answer
    x = 27,078.81

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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.