Home / 28,192.21-42,349.34-18,326.41

Finding the Fourth Proportional to 28,192.21, 42,349.34 and 18,326.41

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Solution

The fourth proportional to 28,192.21, 42,349.34 and 18,326.41 is: 27,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.21 : 42,349.34 = 18,326.41 : x
  2. Step 2: Convert to fraction form
    28,192.21/42,349.34 = 18,326.41/x
  3. Step 3: Cross multiply
    28,192.21x = 42,349.34 × 18,326.41
  4. Step 4: Simplify right side
    28,192.21x = 776,111,368.07
  5. Step 5: Solve for x
    x = 776,111,368.07/28,192.21
  6. Step 6: Final answer
    x = 27,529.28

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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.