Home / 22,263.04-30,721.64-12,191.60

Finding the Fourth Proportional to 22,263.04, 30,721.64 and 12,191.60

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Solution

The fourth proportional to 22,263.04, 30,721.64 and 12,191.60 is: 16,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,263.04 : 30,721.64 = 12,191.60 : x
  2. Step 2: Convert to fraction form
    22,263.04/30,721.64 = 12,191.60/x
  3. Step 3: Cross multiply
    22,263.04x = 30,721.64 × 12,191.60
  4. Step 4: Simplify right side
    22,263.04x = 374,545,946.22
  5. Step 5: Solve for x
    x = 374,545,946.22/22,263.04
  6. Step 6: Final answer
    x = 16,823.67

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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.