Home / 30,539.32-45,822.75-19,443.13

Finding the Fourth Proportional to 30,539.32, 45,822.75 and 19,443.13

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Solution

The fourth proportional to 30,539.32, 45,822.75 and 19,443.13 is: 29,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.32 : 45,822.75 = 19,443.13 : x
  2. Step 2: Convert to fraction form
    30,539.32/45,822.75 = 19,443.13/x
  3. Step 3: Cross multiply
    30,539.32x = 45,822.75 × 19,443.13
  4. Step 4: Simplify right side
    30,539.32x = 890,937,685.21
  5. Step 5: Solve for x
    x = 890,937,685.21/30,539.32
  6. Step 6: Final answer
    x = 29,173.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.