Home / 28,988.02-39,994.39-16,239.48

Finding the Fourth Proportional to 28,988.02, 39,994.39 and 16,239.48

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Solution

The fourth proportional to 28,988.02, 39,994.39 and 16,239.48 is: 22,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.02 : 39,994.39 = 16,239.48 : x
  2. Step 2: Convert to fraction form
    28,988.02/39,994.39 = 16,239.48/x
  3. Step 3: Cross multiply
    28,988.02x = 39,994.39 × 16,239.48
  4. Step 4: Simplify right side
    28,988.02x = 649,488,096.52
  5. Step 5: Solve for x
    x = 649,488,096.52/28,988.02
  6. Step 6: Final answer
    x = 22,405.40

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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.