Home / 30,599.93-45,840.06-21,110.78

Finding the Fourth Proportional to 30,599.93, 45,840.06 and 21,110.78

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Solution

The fourth proportional to 30,599.93, 45,840.06 and 21,110.78 is: 31,624.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,599.93 : 45,840.06 = 21,110.78 : x
  2. Step 2: Convert to fraction form
    30,599.93/45,840.06 = 21,110.78/x
  3. Step 3: Cross multiply
    30,599.93x = 45,840.06 × 21,110.78
  4. Step 4: Simplify right side
    30,599.93x = 967,719,536.45
  5. Step 5: Solve for x
    x = 967,719,536.45/30,599.93
  6. Step 6: Final answer
    x = 31,624.89

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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.