Home / 21,116.34-31,683.72-10,030.86

Finding the Fourth Proportional to 21,116.34, 31,683.72 and 10,030.86

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Solution

The fourth proportional to 21,116.34, 31,683.72 and 10,030.86 is: 15,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116.34 : 31,683.72 = 10,030.86 : x
  2. Step 2: Convert to fraction form
    21,116.34/31,683.72 = 10,030.86/x
  3. Step 3: Cross multiply
    21,116.34x = 31,683.72 × 10,030.86
  4. Step 4: Simplify right side
    21,116.34x = 317,814,959.60
  5. Step 5: Solve for x
    x = 317,814,959.60/21,116.34
  6. Step 6: Final answer
    x = 15,050.67

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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.