Home / 30,179.79-45,290.48-13,558.46

Finding the Fourth Proportional to 30,179.79, 45,290.48 and 13,558.46

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Solution

The fourth proportional to 30,179.79, 45,290.48 and 13,558.46 is: 20,347.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.79 : 45,290.48 = 13,558.46 : x
  2. Step 2: Convert to fraction form
    30,179.79/45,290.48 = 13,558.46/x
  3. Step 3: Cross multiply
    30,179.79x = 45,290.48 × 13,558.46
  4. Step 4: Simplify right side
    30,179.79x = 614,068,867.22
  5. Step 5: Solve for x
    x = 614,068,867.22/30,179.79
  6. Step 6: Final answer
    x = 20,347.02

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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.