Home / 20,314.10-30,476.12-6,987.30

Finding the Fourth Proportional to 20,314.10, 30,476.12 and 6,987.30

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Solution

The fourth proportional to 20,314.10, 30,476.12 and 6,987.30 is: 10,482.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.10 : 30,476.12 = 6,987.30 : x
  2. Step 2: Convert to fraction form
    20,314.10/30,476.12 = 6,987.30/x
  3. Step 3: Cross multiply
    20,314.10x = 30,476.12 × 6,987.30
  4. Step 4: Simplify right side
    20,314.10x = 212,945,758.34
  5. Step 5: Solve for x
    x = 212,945,758.34/20,314.10
  6. Step 6: Final answer
    x = 10,482.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.