Home / 19,551.84-29,338.29-12,981.12

Finding the Fourth Proportional to 19,551.84, 29,338.29 and 12,981.12

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Solution

The fourth proportional to 19,551.84, 29,338.29 and 12,981.12 is: 19,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.84 : 29,338.29 = 12,981.12 : x
  2. Step 2: Convert to fraction form
    19,551.84/29,338.29 = 12,981.12/x
  3. Step 3: Cross multiply
    19,551.84x = 29,338.29 × 12,981.12
  4. Step 4: Simplify right side
    19,551.84x = 380,843,863.08
  5. Step 5: Solve for x
    x = 380,843,863.08/19,551.84
  6. Step 6: Final answer
    x = 19,478.67

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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.