Home / 28,048.50-42,040.47-11,390.25

Finding the Fourth Proportional to 28,048.50, 42,040.47 and 11,390.25

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Solution

The fourth proportional to 28,048.50, 42,040.47 and 11,390.25 is: 17,072.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.50 : 42,040.47 = 11,390.25 : x
  2. Step 2: Convert to fraction form
    28,048.50/42,040.47 = 11,390.25/x
  3. Step 3: Cross multiply
    28,048.50x = 42,040.47 × 11,390.25
  4. Step 4: Simplify right side
    28,048.50x = 478,851,463.42
  5. Step 5: Solve for x
    x = 478,851,463.42/28,048.50
  6. Step 6: Final answer
    x = 17,072.27

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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.