Home / 28,356.07-42,538.00-9,631.08

Finding the Fourth Proportional to 28,356.07, 42,538.00 and 9,631.08

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Solution

The fourth proportional to 28,356.07, 42,538.00 and 9,631.08 is: 14,447.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356.07 : 42,538.00 = 9,631.08 : x
  2. Step 2: Convert to fraction form
    28,356.07/42,538.00 = 9,631.08/x
  3. Step 3: Cross multiply
    28,356.07x = 42,538.00 × 9,631.08
  4. Step 4: Simplify right side
    28,356.07x = 409,686,788.11
  5. Step 5: Solve for x
    x = 409,686,788.11/28,356.07
  6. Step 6: Final answer
    x = 14,447.94

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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.