Home / 28,038.66-42,013.98-17,628.54

Finding the Fourth Proportional to 28,038.66, 42,013.98 and 17,628.54

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Solution

The fourth proportional to 28,038.66, 42,013.98 and 17,628.54 is: 26,415.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.66 : 42,013.98 = 17,628.54 : x
  2. Step 2: Convert to fraction form
    28,038.66/42,013.98 = 17,628.54/x
  3. Step 3: Cross multiply
    28,038.66x = 42,013.98 × 17,628.54
  4. Step 4: Simplify right side
    28,038.66x = 740,645,126.99
  5. Step 5: Solve for x
    x = 740,645,126.99/28,038.66
  6. Step 6: Final answer
    x = 26,415.14

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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.