Home / 28,442.56-42,653.04-13,642.24

Finding the Fourth Proportional to 28,442.56, 42,653.04 and 13,642.24

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Solution

The fourth proportional to 28,442.56, 42,653.04 and 13,642.24 is: 20,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.56 : 42,653.04 = 13,642.24 : x
  2. Step 2: Convert to fraction form
    28,442.56/42,653.04 = 13,642.24/x
  3. Step 3: Cross multiply
    28,442.56x = 42,653.04 × 13,642.24
  4. Step 4: Simplify right side
    28,442.56x = 581,883,008.41
  5. Step 5: Solve for x
    x = 581,883,008.41/28,442.56
  6. Step 6: Final answer
    x = 20,458.18

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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.