Home / 30,459.56-45,666.18-21,074.63

Finding the Fourth Proportional to 30,459.56, 45,666.18 and 21,074.63

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Solution

The fourth proportional to 30,459.56, 45,666.18 and 21,074.63 is: 31,595.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,459.56 : 45,666.18 = 21,074.63 : x
  2. Step 2: Convert to fraction form
    30,459.56/45,666.18 = 21,074.63/x
  3. Step 3: Cross multiply
    30,459.56x = 45,666.18 × 21,074.63
  4. Step 4: Simplify right side
    30,459.56x = 962,397,618.68
  5. Step 5: Solve for x
    x = 962,397,618.68/30,459.56
  6. Step 6: Final answer
    x = 31,595.92

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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.