Home / 30,290.22-45,399.78-13,630.77

Finding the Fourth Proportional to 30,290.22, 45,399.78 and 13,630.77

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Solution

The fourth proportional to 30,290.22, 45,399.78 and 13,630.77 is: 20,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.22 : 45,399.78 = 13,630.77 : x
  2. Step 2: Convert to fraction form
    30,290.22/45,399.78 = 13,630.77/x
  3. Step 3: Cross multiply
    30,290.22x = 45,399.78 × 13,630.77
  4. Step 4: Simplify right side
    30,290.22x = 618,833,959.23
  5. Step 5: Solve for x
    x = 618,833,959.23/30,290.22
  6. Step 6: Final answer
    x = 20,430.16

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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.