Home / 21,364.48-32,051.28-7,320.74

Finding the Fourth Proportional to 21,364.48, 32,051.28 and 7,320.74

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Solution

The fourth proportional to 21,364.48, 32,051.28 and 7,320.74 is: 10,982.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.48 : 32,051.28 = 7,320.74 : x
  2. Step 2: Convert to fraction form
    21,364.48/32,051.28 = 7,320.74/x
  3. Step 3: Cross multiply
    21,364.48x = 32,051.28 × 7,320.74
  4. Step 4: Simplify right side
    21,364.48x = 234,639,087.55
  5. Step 5: Solve for x
    x = 234,639,087.55/21,364.48
  6. Step 6: Final answer
    x = 10,982.67

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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.