Home / 56,128.04-84,203.16-20,589.69

Finding the Fourth Proportional to 56,128.04, 84,203.16 and 20,589.69

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Solution

The fourth proportional to 56,128.04, 84,203.16 and 20,589.69 is: 30,888.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,128.04 : 84,203.16 = 20,589.69 : x
  2. Step 2: Convert to fraction form
    56,128.04/84,203.16 = 20,589.69/x
  3. Step 3: Cross multiply
    56,128.04x = 84,203.16 × 20,589.69
  4. Step 4: Simplify right side
    56,128.04x = 1,733,717,199.97
  5. Step 5: Solve for x
    x = 1,733,717,199.97/56,128.04
  6. Step 6: Final answer
    x = 30,888.61

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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.