Home / 38,145.68-52,638.94-21,148.94

Finding the Fourth Proportional to 38,145.68, 52,638.94 and 21,148.94

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Solution

The fourth proportional to 38,145.68, 52,638.94 and 21,148.94 is: 29,184.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,145.68 : 52,638.94 = 21,148.94 : x
  2. Step 2: Convert to fraction form
    38,145.68/52,638.94 = 21,148.94/x
  3. Step 3: Cross multiply
    38,145.68x = 52,638.94 × 21,148.94
  4. Step 4: Simplify right side
    38,145.68x = 1,113,257,526.70
  5. Step 5: Solve for x
    x = 1,113,257,526.70/38,145.68
  6. Step 6: Final answer
    x = 29,184.36

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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.