Home / 28,071.23-38,728.33-18,005.09

Finding the Fourth Proportional to 28,071.23, 38,728.33 and 18,005.09

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Solution

The fourth proportional to 28,071.23, 38,728.33 and 18,005.09 is: 24,840.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.23 : 38,728.33 = 18,005.09 : x
  2. Step 2: Convert to fraction form
    28,071.23/38,728.33 = 18,005.09/x
  3. Step 3: Cross multiply
    28,071.23x = 38,728.33 × 18,005.09
  4. Step 4: Simplify right side
    28,071.23x = 697,306,828.55
  5. Step 5: Solve for x
    x = 697,306,828.55/28,071.23
  6. Step 6: Final answer
    x = 24,840.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.