Home / 36,985.04-55,476.12-20,378

Finding the Fourth Proportional to 36,985.04, 55,476.12 and 20,378

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Solution

The fourth proportional to 36,985.04, 55,476.12 and 20,378 is: 30,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,985.04 : 55,476.12 = 20,378 : x
  2. Step 2: Convert to fraction form
    36,985.04/55,476.12 = 20,378/x
  3. Step 3: Cross multiply
    36,985.04x = 55,476.12 × 20,378
  4. Step 4: Simplify right side
    36,985.04x = 1,130,492,373.36
  5. Step 5: Solve for x
    x = 1,130,492,373.36/36,985.04
  6. Step 6: Final answer
    x = 30,566.21

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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.