Home / 20,250.04-30,347.34-12,859.65

Finding the Fourth Proportional to 20,250.04, 30,347.34 and 12,859.65

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Solution

The fourth proportional to 20,250.04, 30,347.34 and 12,859.65 is: 19,271.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.04 : 30,347.34 = 12,859.65 : x
  2. Step 2: Convert to fraction form
    20,250.04/30,347.34 = 12,859.65/x
  3. Step 3: Cross multiply
    20,250.04x = 30,347.34 × 12,859.65
  4. Step 4: Simplify right side
    20,250.04x = 390,256,170.83
  5. Step 5: Solve for x
    x = 390,256,170.83/20,250.04
  6. Step 6: Final answer
    x = 19,271.87

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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.