Home / 30,656.34-45,989.98-11,946.56

Finding the Fourth Proportional to 30,656.34, 45,989.98 and 11,946.56

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Solution

The fourth proportional to 30,656.34, 45,989.98 and 11,946.56 is: 17,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656.34 : 45,989.98 = 11,946.56 : x
  2. Step 2: Convert to fraction form
    30,656.34/45,989.98 = 11,946.56/x
  3. Step 3: Cross multiply
    30,656.34x = 45,989.98 × 11,946.56
  4. Step 4: Simplify right side
    30,656.34x = 549,422,055.47
  5. Step 5: Solve for x
    x = 549,422,055.47/30,656.34
  6. Step 6: Final answer
    x = 17,921.97

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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.