Home / 25,119.99-34,666.04-13,790.55

Finding the Fourth Proportional to 25,119.99, 34,666.04 and 13,790.55

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Solution

The fourth proportional to 25,119.99, 34,666.04 and 13,790.55 is: 19,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,119.99 : 34,666.04 = 13,790.55 : x
  2. Step 2: Convert to fraction form
    25,119.99/34,666.04 = 13,790.55/x
  3. Step 3: Cross multiply
    25,119.99x = 34,666.04 × 13,790.55
  4. Step 4: Simplify right side
    25,119.99x = 478,063,922.40
  5. Step 5: Solve for x
    x = 478,063,922.40/25,119.99
  6. Step 6: Final answer
    x = 19,031.21

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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.