Home / 34,240.74-47,238.15-20,809.83

Finding the Fourth Proportional to 34,240.74, 47,238.15 and 20,809.83

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Solution

The fourth proportional to 34,240.74, 47,238.15 and 20,809.83 is: 28,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,240.74 : 47,238.15 = 20,809.83 : x
  2. Step 2: Convert to fraction form
    34,240.74/47,238.15 = 20,809.83/x
  3. Step 3: Cross multiply
    34,240.74x = 47,238.15 × 20,809.83
  4. Step 4: Simplify right side
    34,240.74x = 983,017,871.01
  5. Step 5: Solve for x
    x = 983,017,871.01/34,240.74
  6. Step 6: Final answer
    x = 28,709.01

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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.