Home / 19,972.56-29,918.73-9,947.10

Finding the Fourth Proportional to 19,972.56, 29,918.73 and 9,947.10

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Solution

The fourth proportional to 19,972.56, 29,918.73 and 9,947.10 is: 14,900.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.56 : 29,918.73 = 9,947.10 : x
  2. Step 2: Convert to fraction form
    19,972.56/29,918.73 = 9,947.10/x
  3. Step 3: Cross multiply
    19,972.56x = 29,918.73 × 9,947.10
  4. Step 4: Simplify right side
    19,972.56x = 297,604,599.18
  5. Step 5: Solve for x
    x = 297,604,599.18/19,972.56
  6. Step 6: Final answer
    x = 14,900.67

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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.