Home / 28,040.36-42,058.89-10,508.72

Finding the Fourth Proportional to 28,040.36, 42,058.89 and 10,508.72

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Solution

The fourth proportional to 28,040.36, 42,058.89 and 10,508.72 is: 15,762.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.36 : 42,058.89 = 10,508.72 : x
  2. Step 2: Convert to fraction form
    28,040.36/42,058.89 = 10,508.72/x
  3. Step 3: Cross multiply
    28,040.36x = 42,058.89 × 10,508.72
  4. Step 4: Simplify right side
    28,040.36x = 441,985,098.52
  5. Step 5: Solve for x
    x = 441,985,098.52/28,040.36
  6. Step 6: Final answer
    x = 15,762.46

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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.