Home / 28,228.78-38,955.64-16,292.10

Finding the Fourth Proportional to 28,228.78, 38,955.64 and 16,292.10

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Solution

The fourth proportional to 28,228.78, 38,955.64 and 16,292.10 is: 22,483.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.78 : 38,955.64 = 16,292.10 : x
  2. Step 2: Convert to fraction form
    28,228.78/38,955.64 = 16,292.10/x
  3. Step 3: Cross multiply
    28,228.78x = 38,955.64 × 16,292.10
  4. Step 4: Simplify right side
    28,228.78x = 634,669,182.44
  5. Step 5: Solve for x
    x = 634,669,182.44/28,228.78
  6. Step 6: Final answer
    x = 22,483.05

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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.