Home / 19,770.04-27,280.02-11,384.92

Finding the Fourth Proportional to 19,770.04, 27,280.02 and 11,384.92

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Solution

The fourth proportional to 19,770.04, 27,280.02 and 11,384.92 is: 15,709.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.04 : 27,280.02 = 11,384.92 : x
  2. Step 2: Convert to fraction form
    19,770.04/27,280.02 = 11,384.92/x
  3. Step 3: Cross multiply
    19,770.04x = 27,280.02 × 11,384.92
  4. Step 4: Simplify right side
    19,770.04x = 310,580,845.30
  5. Step 5: Solve for x
    x = 310,580,845.30/19,770.04
  6. Step 6: Final answer
    x = 15,709.67

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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.