Home / 39,478.29-54,477.72-21,573.43

Finding the Fourth Proportional to 39,478.29, 54,477.72 and 21,573.43

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Solution

The fourth proportional to 39,478.29, 54,477.72 and 21,573.43 is: 29,770.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478.29 : 54,477.72 = 21,573.43 : x
  2. Step 2: Convert to fraction form
    39,478.29/54,477.72 = 21,573.43/x
  3. Step 3: Cross multiply
    39,478.29x = 54,477.72 × 21,573.43
  4. Step 4: Simplify right side
    39,478.29x = 1,175,271,278.98
  5. Step 5: Solve for x
    x = 1,175,271,278.98/39,478.29
  6. Step 6: Final answer
    x = 29,770.07

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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.