Home / 28,023.83-42,012.86-13,040.31

Finding the Fourth Proportional to 28,023.83, 42,012.86 and 13,040.31

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Solution

The fourth proportional to 28,023.83, 42,012.86 and 13,040.31 is: 19,549.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.83 : 42,012.86 = 13,040.31 : x
  2. Step 2: Convert to fraction form
    28,023.83/42,012.86 = 13,040.31/x
  3. Step 3: Cross multiply
    28,023.83x = 42,012.86 × 13,040.31
  4. Step 4: Simplify right side
    28,023.83x = 547,860,653.19
  5. Step 5: Solve for x
    x = 547,860,653.19/28,023.83
  6. Step 6: Final answer
    x = 19,549.82

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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.