Home / 28,023.93-42,035.81-9,305.39

Finding the Fourth Proportional to 28,023.93, 42,035.81 and 9,305.39

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Solution

The fourth proportional to 28,023.93, 42,035.81 and 9,305.39 is: 13,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.93 : 42,035.81 = 9,305.39 : x
  2. Step 2: Convert to fraction form
    28,023.93/42,035.81 = 9,305.39/x
  3. Step 3: Cross multiply
    28,023.93x = 42,035.81 × 9,305.39
  4. Step 4: Simplify right side
    28,023.93x = 391,159,349.31
  5. Step 5: Solve for x
    x = 391,159,349.31/28,023.93
  6. Step 6: Final answer
    x = 13,958.05

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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.