Home / 28,143.04-38,837.40-16,208.68

Finding the Fourth Proportional to 28,143.04, 38,837.40 and 16,208.68

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Solution

The fourth proportional to 28,143.04, 38,837.40 and 16,208.68 is: 22,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143.04 : 38,837.40 = 16,208.68 : x
  2. Step 2: Convert to fraction form
    28,143.04/38,837.40 = 16,208.68/x
  3. Step 3: Cross multiply
    28,143.04x = 38,837.40 × 16,208.68
  4. Step 4: Simplify right side
    28,143.04x = 629,502,988.63
  5. Step 5: Solve for x
    x = 629,502,988.63/28,143.04
  6. Step 6: Final answer
    x = 22,367.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.