Home / 34,118.46-47,085.84-20,690.28

Finding the Fourth Proportional to 34,118.46, 47,085.84 and 20,690.28

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Solution

The fourth proportional to 34,118.46, 47,085.84 and 20,690.28 is: 28,554.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,118.46 : 47,085.84 = 20,690.28 : x
  2. Step 2: Convert to fraction form
    34,118.46/47,085.84 = 20,690.28/x
  3. Step 3: Cross multiply
    34,118.46x = 47,085.84 × 20,690.28
  4. Step 4: Simplify right side
    34,118.46x = 974,219,213.64
  5. Step 5: Solve for x
    x = 974,219,213.64/34,118.46
  6. Step 6: Final answer
    x = 28,554.02

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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.