Home / 30,133.16-45,168.36-10,127.80

Finding the Fourth Proportional to 30,133.16, 45,168.36 and 10,127.80

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Solution

The fourth proportional to 30,133.16, 45,168.36 and 10,127.80 is: 15,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,133.16 : 45,168.36 = 10,127.80 : x
  2. Step 2: Convert to fraction form
    30,133.16/45,168.36 = 10,127.80/x
  3. Step 3: Cross multiply
    30,133.16x = 45,168.36 × 10,127.80
  4. Step 4: Simplify right side
    30,133.16x = 457,456,116.41
  5. Step 5: Solve for x
    x = 457,456,116.41/30,133.16
  6. Step 6: Final answer
    x = 15,181.15

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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.