Home / 34,568.15-47,689.47-21,135.11

Finding the Fourth Proportional to 34,568.15, 47,689.47 and 21,135.11

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Solution

The fourth proportional to 34,568.15, 47,689.47 and 21,135.11 is: 29,157.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,568.15 : 47,689.47 = 21,135.11 : x
  2. Step 2: Convert to fraction form
    34,568.15/47,689.47 = 21,135.11/x
  3. Step 3: Cross multiply
    34,568.15x = 47,689.47 × 21,135.11
  4. Step 4: Simplify right side
    34,568.15x = 1,007,921,955.84
  5. Step 5: Solve for x
    x = 1,007,921,955.84/34,568.15
  6. Step 6: Final answer
    x = 29,157.54

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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.