Home / 28,031.04-42,040.80-13,233.60

Finding the Fourth Proportional to 28,031.04, 42,040.80 and 13,233.60

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Solution

The fourth proportional to 28,031.04, 42,040.80 and 13,233.60 is: 19,847.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.04 : 42,040.80 = 13,233.60 : x
  2. Step 2: Convert to fraction form
    28,031.04/42,040.80 = 13,233.60/x
  3. Step 3: Cross multiply
    28,031.04x = 42,040.80 × 13,233.60
  4. Step 4: Simplify right side
    28,031.04x = 556,351,130.88
  5. Step 5: Solve for x
    x = 556,351,130.88/28,031.04
  6. Step 6: Final answer
    x = 19,847.68

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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.