Home / 34,719.88-47,905.12-20,570.28

Finding the Fourth Proportional to 34,719.88, 47,905.12 and 20,570.28

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Solution

The fourth proportional to 34,719.88, 47,905.12 and 20,570.28 is: 28,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,719.88 : 47,905.12 = 20,570.28 : x
  2. Step 2: Convert to fraction form
    34,719.88/47,905.12 = 20,570.28/x
  3. Step 3: Cross multiply
    34,719.88x = 47,905.12 × 20,570.28
  4. Step 4: Simplify right side
    34,719.88x = 985,421,731.83
  5. Step 5: Solve for x
    x = 985,421,731.83/34,719.88
  6. Step 6: Final answer
    x = 28,382.06

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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.