Home / 34,220.40-47,216.08-19,871.70

Finding the Fourth Proportional to 34,220.40, 47,216.08 and 19,871.70

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Solution

The fourth proportional to 34,220.40, 47,216.08 and 19,871.70 is: 27,418.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,220.40 : 47,216.08 = 19,871.70 : x
  2. Step 2: Convert to fraction form
    34,220.40/47,216.08 = 19,871.70/x
  3. Step 3: Cross multiply
    34,220.40x = 47,216.08 × 19,871.70
  4. Step 4: Simplify right side
    34,220.40x = 938,263,776.94
  5. Step 5: Solve for x
    x = 938,263,776.94/34,220.40
  6. Step 6: Final answer
    x = 27,418.26

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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.