Home / 20,290.03-30,412.43-8,437.16

Finding the Fourth Proportional to 20,290.03, 30,412.43 and 8,437.16

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Solution

The fourth proportional to 20,290.03, 30,412.43 and 8,437.16 is: 12,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.03 : 30,412.43 = 8,437.16 : x
  2. Step 2: Convert to fraction form
    20,290.03/30,412.43 = 8,437.16/x
  3. Step 3: Cross multiply
    20,290.03x = 30,412.43 × 8,437.16
  4. Step 4: Simplify right side
    20,290.03x = 256,594,603.38
  5. Step 5: Solve for x
    x = 256,594,603.38/20,290.03
  6. Step 6: Final answer
    x = 12,646.34

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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.