Home / 30,838.89-42,557.37-17,409.84

Finding the Fourth Proportional to 30,838.89, 42,557.37 and 17,409.84

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Solution

The fourth proportional to 30,838.89, 42,557.37 and 17,409.84 is: 24,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,838.89 : 42,557.37 = 17,409.84 : x
  2. Step 2: Convert to fraction form
    30,838.89/42,557.37 = 17,409.84/x
  3. Step 3: Cross multiply
    30,838.89x = 42,557.37 × 17,409.84
  4. Step 4: Simplify right side
    30,838.89x = 740,916,777.64
  5. Step 5: Solve for x
    x = 740,916,777.64/30,838.89
  6. Step 6: Final answer
    x = 24,025.40

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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.