Home / 30,259.32-45,431.10-15,478.44

Finding the Fourth Proportional to 30,259.32, 45,431.10 and 15,478.44

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Solution

The fourth proportional to 30,259.32, 45,431.10 and 15,478.44 is: 23,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,259.32 : 45,431.10 = 15,478.44 : x
  2. Step 2: Convert to fraction form
    30,259.32/45,431.10 = 15,478.44/x
  3. Step 3: Cross multiply
    30,259.32x = 45,431.10 × 15,478.44
  4. Step 4: Simplify right side
    30,259.32x = 703,202,555.48
  5. Step 5: Solve for x
    x = 703,202,555.48/30,259.32
  6. Step 6: Final answer
    x = 23,239.21

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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.