Home / 30,060.47-45,101.05-13,431.98

Finding the Fourth Proportional to 30,060.47, 45,101.05 and 13,431.98

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Solution

The fourth proportional to 30,060.47, 45,101.05 and 13,431.98 is: 20,152.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,060.47 : 45,101.05 = 13,431.98 : x
  2. Step 2: Convert to fraction form
    30,060.47/45,101.05 = 13,431.98/x
  3. Step 3: Cross multiply
    30,060.47x = 45,101.05 × 13,431.98
  4. Step 4: Simplify right side
    30,060.47x = 605,796,480.75
  5. Step 5: Solve for x
    x = 605,796,480.75/30,060.47
  6. Step 6: Final answer
    x = 20,152.59

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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.