Home / 20,706.66-31,038.30-9,016.74

Finding the Fourth Proportional to 20,706.66, 31,038.30 and 9,016.74

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Solution

The fourth proportional to 20,706.66, 31,038.30 and 9,016.74 is: 13,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706.66 : 31,038.30 = 9,016.74 : x
  2. Step 2: Convert to fraction form
    20,706.66/31,038.30 = 9,016.74/x
  3. Step 3: Cross multiply
    20,706.66x = 31,038.30 × 9,016.74
  4. Step 4: Simplify right side
    20,706.66x = 279,864,281.14
  5. Step 5: Solve for x
    x = 279,864,281.14/20,706.66
  6. Step 6: Final answer
    x = 13,515.67

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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.