Home / 34,273.05-47,283.51-21,520.81

Finding the Fourth Proportional to 34,273.05, 47,283.51 and 21,520.81

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Solution

The fourth proportional to 34,273.05, 47,283.51 and 21,520.81 is: 29,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,273.05 : 47,283.51 = 21,520.81 : x
  2. Step 2: Convert to fraction form
    34,273.05/47,283.51 = 21,520.81/x
  3. Step 3: Cross multiply
    34,273.05x = 47,283.51 × 21,520.81
  4. Step 4: Simplify right side
    34,273.05x = 1,017,579,434.84
  5. Step 5: Solve for x
    x = 1,017,579,434.84/34,273.05
  6. Step 6: Final answer
    x = 29,690.37

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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.