Home / 19,935.40-29,927.40-10,069.60

Finding the Fourth Proportional to 19,935.40, 29,927.40 and 10,069.60

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Solution

The fourth proportional to 19,935.40, 29,927.40 and 10,069.60 is: 15,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.40 : 29,927.40 = 10,069.60 : x
  2. Step 2: Convert to fraction form
    19,935.40/29,927.40 = 10,069.60/x
  3. Step 3: Cross multiply
    19,935.40x = 29,927.40 × 10,069.60
  4. Step 4: Simplify right side
    19,935.40x = 301,356,947.04
  5. Step 5: Solve for x
    x = 301,356,947.04/19,935.40
  6. Step 6: Final answer
    x = 15,116.67

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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.