Home / 20,017.09-30,004.76-7,528.51

Finding the Fourth Proportional to 20,017.09, 30,004.76 and 7,528.51

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Solution

The fourth proportional to 20,017.09, 30,004.76 and 7,528.51 is: 11,284.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.09 : 30,004.76 = 7,528.51 : x
  2. Step 2: Convert to fraction form
    20,017.09/30,004.76 = 7,528.51/x
  3. Step 3: Cross multiply
    20,017.09x = 30,004.76 × 7,528.51
  4. Step 4: Simplify right side
    20,017.09x = 225,891,079.52
  5. Step 5: Solve for x
    x = 225,891,079.52/20,017.09
  6. Step 6: Final answer
    x = 11,284.91

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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.