Home / 30,887.54-42,623.66-16,740.08

Finding the Fourth Proportional to 30,887.54, 42,623.66 and 16,740.08

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Solution

The fourth proportional to 30,887.54, 42,623.66 and 16,740.08 is: 23,100.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.54 : 42,623.66 = 16,740.08 : x
  2. Step 2: Convert to fraction form
    30,887.54/42,623.66 = 16,740.08/x
  3. Step 3: Cross multiply
    30,887.54x = 42,623.66 × 16,740.08
  4. Step 4: Simplify right side
    30,887.54x = 713,523,478.29
  5. Step 5: Solve for x
    x = 713,523,478.29/30,887.54
  6. Step 6: Final answer
    x = 23,100.69

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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.