Home / 17,085.80-23,570.04-11,421.92

Finding the Fourth Proportional to 17,085.80, 23,570.04 and 11,421.92

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Solution

The fourth proportional to 17,085.80, 23,570.04 and 11,421.92 is: 15,756.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,085.80 : 23,570.04 = 11,421.92 : x
  2. Step 2: Convert to fraction form
    17,085.80/23,570.04 = 11,421.92/x
  3. Step 3: Cross multiply
    17,085.80x = 23,570.04 × 11,421.92
  4. Step 4: Simplify right side
    17,085.80x = 269,215,111.28
  5. Step 5: Solve for x
    x = 269,215,111.28/17,085.80
  6. Step 6: Final answer
    x = 15,756.66

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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.