Home / 30,529.45-42,130.40-17,100.83

Finding the Fourth Proportional to 30,529.45, 42,130.40 and 17,100.83

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Solution

The fourth proportional to 30,529.45, 42,130.40 and 17,100.83 is: 23,599.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,529.45 : 42,130.40 = 17,100.83 : x
  2. Step 2: Convert to fraction form
    30,529.45/42,130.40 = 17,100.83/x
  3. Step 3: Cross multiply
    30,529.45x = 42,130.40 × 17,100.83
  4. Step 4: Simplify right side
    30,529.45x = 720,464,828.05
  5. Step 5: Solve for x
    x = 720,464,828.05/30,529.45
  6. Step 6: Final answer
    x = 23,599.01

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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.