Home / 30,290.70-45,403.98-11,558.64

Finding the Fourth Proportional to 30,290.70, 45,403.98 and 11,558.64

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Solution

The fourth proportional to 30,290.70, 45,403.98 and 11,558.64 is: 17,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.70 : 45,403.98 = 11,558.64 : x
  2. Step 2: Convert to fraction form
    30,290.70/45,403.98 = 11,558.64/x
  3. Step 3: Cross multiply
    30,290.70x = 45,403.98 × 11,558.64
  4. Step 4: Simplify right side
    30,290.70x = 524,808,259.39
  5. Step 5: Solve for x
    x = 524,808,259.39/30,290.70
  6. Step 6: Final answer
    x = 17,325.72

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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.