Home / 19,397.61-29,109.17-10,638.67

Finding the Fourth Proportional to 19,397.61, 29,109.17 and 10,638.67

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Solution

The fourth proportional to 19,397.61, 29,109.17 and 10,638.67 is: 15,965.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.61 : 29,109.17 = 10,638.67 : x
  2. Step 2: Convert to fraction form
    19,397.61/29,109.17 = 10,638.67/x
  3. Step 3: Cross multiply
    19,397.61x = 29,109.17 × 10,638.67
  4. Step 4: Simplify right side
    19,397.61x = 309,682,853.60
  5. Step 5: Solve for x
    x = 309,682,853.60/19,397.61
  6. Step 6: Final answer
    x = 15,965.00

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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.