Home / 30,539.52-42,157.44-19,938.24

Finding the Fourth Proportional to 30,539.52, 42,157.44 and 19,938.24

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Solution

The fourth proportional to 30,539.52, 42,157.44 and 19,938.24 is: 27,523.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.52 : 42,157.44 = 19,938.24 : x
  2. Step 2: Convert to fraction form
    30,539.52/42,157.44 = 19,938.24/x
  3. Step 3: Cross multiply
    30,539.52x = 42,157.44 × 19,938.24
  4. Step 4: Simplify right side
    30,539.52x = 840,545,156.51
  5. Step 5: Solve for x
    x = 840,545,156.51/30,539.52
  6. Step 6: Final answer
    x = 27,523.19

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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.