Home / 28,428.57-42,644.37-10,897.03

Finding the Fourth Proportional to 28,428.57, 42,644.37 and 10,897.03

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Solution

The fourth proportional to 28,428.57, 42,644.37 and 10,897.03 is: 16,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428.57 : 42,644.37 = 10,897.03 : x
  2. Step 2: Convert to fraction form
    28,428.57/42,644.37 = 10,897.03/x
  3. Step 3: Cross multiply
    28,428.57x = 42,644.37 × 10,897.03
  4. Step 4: Simplify right side
    28,428.57x = 464,697,073.39
  5. Step 5: Solve for x
    x = 464,697,073.39/28,428.57
  6. Step 6: Final answer
    x = 16,346.13

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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.