Home / 28,377.21-39,157.13-16,277.07

Finding the Fourth Proportional to 28,377.21, 39,157.13 and 16,277.07

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Solution

The fourth proportional to 28,377.21, 39,157.13 and 16,277.07 is: 22,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.21 : 39,157.13 = 16,277.07 : x
  2. Step 2: Convert to fraction form
    28,377.21/39,157.13 = 16,277.07/x
  3. Step 3: Cross multiply
    28,377.21x = 39,157.13 × 16,277.07
  4. Step 4: Simplify right side
    28,377.21x = 637,363,533.54
  5. Step 5: Solve for x
    x = 637,363,533.54/28,377.21
  6. Step 6: Final answer
    x = 22,460.40

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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.