Home / 58,450.09-87,653.59-21,000.12

Finding the Fourth Proportional to 58,450.09, 87,653.59 and 21,000.12

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Solution

The fourth proportional to 58,450.09, 87,653.59 and 21,000.12 is: 31,492.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,450.09 : 87,653.59 = 21,000.12 : x
  2. Step 2: Convert to fraction form
    58,450.09/87,653.59 = 21,000.12/x
  3. Step 3: Cross multiply
    58,450.09x = 87,653.59 × 21,000.12
  4. Step 4: Simplify right side
    58,450.09x = 1,840,735,908.43
  5. Step 5: Solve for x
    x = 1,840,735,908.43/58,450.09
  6. Step 6: Final answer
    x = 31,492.44

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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.