Home / 30,615.32-45,921.54-12,841.36

Finding the Fourth Proportional to 30,615.32, 45,921.54 and 12,841.36

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Solution

The fourth proportional to 30,615.32, 45,921.54 and 12,841.36 is: 19,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.32 : 45,921.54 = 12,841.36 : x
  2. Step 2: Convert to fraction form
    30,615.32/45,921.54 = 12,841.36/x
  3. Step 3: Cross multiply
    30,615.32x = 45,921.54 × 12,841.36
  4. Step 4: Simplify right side
    30,615.32x = 589,695,026.89
  5. Step 5: Solve for x
    x = 589,695,026.89/30,615.32
  6. Step 6: Final answer
    x = 19,261.44

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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.