Home / 28,022.97-42,038.51-10,255.35

Finding the Fourth Proportional to 28,022.97, 42,038.51 and 10,255.35

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Solution

The fourth proportional to 28,022.97, 42,038.51 and 10,255.35 is: 15,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.97 : 42,038.51 = 10,255.35 : x
  2. Step 2: Convert to fraction form
    28,022.97/42,038.51 = 10,255.35/x
  3. Step 3: Cross multiply
    28,022.97x = 42,038.51 × 10,255.35
  4. Step 4: Simplify right side
    28,022.97x = 431,119,582.25
  5. Step 5: Solve for x
    x = 431,119,582.25/28,022.97
  6. Step 6: Final answer
    x = 15,384.51

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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.