Home / 17,880.86-26,740.74-13,665.35

Finding the Fourth Proportional to 17,880.86, 26,740.74 and 13,665.35

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Solution

The fourth proportional to 17,880.86, 26,740.74 and 13,665.35 is: 20,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880.86 : 26,740.74 = 13,665.35 : x
  2. Step 2: Convert to fraction form
    17,880.86/26,740.74 = 13,665.35/x
  3. Step 3: Cross multiply
    17,880.86x = 26,740.74 × 13,665.35
  4. Step 4: Simplify right side
    17,880.86x = 365,421,571.36
  5. Step 5: Solve for x
    x = 365,421,571.36/17,880.86
  6. Step 6: Final answer
    x = 20,436.47

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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.