Home / 25,970.08-38,989.68-13,666.72

Finding the Fourth Proportional to 25,970.08, 38,989.68 and 13,666.72

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Solution

The fourth proportional to 25,970.08, 38,989.68 and 13,666.72 is: 20,518.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,970.08 : 38,989.68 = 13,666.72 : x
  2. Step 2: Convert to fraction form
    25,970.08/38,989.68 = 13,666.72/x
  3. Step 3: Cross multiply
    25,970.08x = 38,989.68 × 13,666.72
  4. Step 4: Simplify right side
    25,970.08x = 532,861,039.45
  5. Step 5: Solve for x
    x = 532,861,039.45/25,970.08
  6. Step 6: Final answer
    x = 20,518.27

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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.