Home / 20,310-28,030.23-11,926.50

Finding the Fourth Proportional to 20,310, 28,030.23 and 11,926.50

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Solution

The fourth proportional to 20,310, 28,030.23 and 11,926.50 is: 16,460.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310 : 28,030.23 = 11,926.50 : x
  2. Step 2: Convert to fraction form
    20,310/28,030.23 = 11,926.50/x
  3. Step 3: Cross multiply
    20,310x = 28,030.23 × 11,926.50
  4. Step 4: Simplify right side
    20,310x = 334,302,538.10
  5. Step 5: Solve for x
    x = 334,302,538.10/20,310
  6. Step 6: Final answer
    x = 16,460.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.