Home / 30,447.72-42,012.48-17,014.68

Finding the Fourth Proportional to 30,447.72, 42,012.48 and 17,014.68

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Solution

The fourth proportional to 30,447.72, 42,012.48 and 17,014.68 is: 23,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,447.72 : 42,012.48 = 17,014.68 : x
  2. Step 2: Convert to fraction form
    30,447.72/42,012.48 = 17,014.68/x
  3. Step 3: Cross multiply
    30,447.72x = 42,012.48 × 17,014.68
  4. Step 4: Simplify right side
    30,447.72x = 714,828,903.21
  5. Step 5: Solve for x
    x = 714,828,903.21/30,447.72
  6. Step 6: Final answer
    x = 23,477.26

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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.