Home / 28,289.98-42,428.03-10,275.26

Finding the Fourth Proportional to 28,289.98, 42,428.03 and 10,275.26

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Solution

The fourth proportional to 28,289.98, 42,428.03 and 10,275.26 is: 15,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.98 : 42,428.03 = 10,275.26 : x
  2. Step 2: Convert to fraction form
    28,289.98/42,428.03 = 10,275.26/x
  3. Step 3: Cross multiply
    28,289.98x = 42,428.03 × 10,275.26
  4. Step 4: Simplify right side
    28,289.98x = 435,958,804.92
  5. Step 5: Solve for x
    x = 435,958,804.92/28,289.98
  6. Step 6: Final answer
    x = 15,410.36

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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.