Home / 28,110.16-42,151.47-9,383.77

Finding the Fourth Proportional to 28,110.16, 42,151.47 and 9,383.77

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Solution

The fourth proportional to 28,110.16, 42,151.47 and 9,383.77 is: 14,071.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.16 : 42,151.47 = 9,383.77 : x
  2. Step 2: Convert to fraction form
    28,110.16/42,151.47 = 9,383.77/x
  3. Step 3: Cross multiply
    28,110.16x = 42,151.47 × 9,383.77
  4. Step 4: Simplify right side
    28,110.16x = 395,539,699.64
  5. Step 5: Solve for x
    x = 395,539,699.64/28,110.16
  6. Step 6: Final answer
    x = 14,071.06

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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.