Home / 30,817.85-42,527.93-17,388.76

Finding the Fourth Proportional to 30,817.85, 42,527.93 and 17,388.76

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Solution

The fourth proportional to 30,817.85, 42,527.93 and 17,388.76 is: 23,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,817.85 : 42,527.93 = 17,388.76 : x
  2. Step 2: Convert to fraction form
    30,817.85/42,527.93 = 17,388.76/x
  3. Step 3: Cross multiply
    30,817.85x = 42,527.93 × 17,388.76
  4. Step 4: Simplify right side
    30,817.85x = 739,507,968.07
  5. Step 5: Solve for x
    x = 739,507,968.07/30,817.85
  6. Step 6: Final answer
    x = 23,996.09

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Half scale
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Double scale
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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.