Home / 30,087.48-45,157.14-14,518.20

Finding the Fourth Proportional to 30,087.48, 45,157.14 and 14,518.20

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Solution

The fourth proportional to 30,087.48, 45,157.14 and 14,518.20 is: 21,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,087.48 : 45,157.14 = 14,518.20 : x
  2. Step 2: Convert to fraction form
    30,087.48/45,157.14 = 14,518.20/x
  3. Step 3: Cross multiply
    30,087.48x = 45,157.14 × 14,518.20
  4. Step 4: Simplify right side
    30,087.48x = 655,600,389.95
  5. Step 5: Solve for x
    x = 655,600,389.95/30,087.48
  6. Step 6: Final answer
    x = 21,789.81

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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.