Home / 28,277.54-42,358.90-13,261.98

Finding the Fourth Proportional to 28,277.54, 42,358.90 and 13,261.98

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Solution

The fourth proportional to 28,277.54, 42,358.90 and 13,261.98 is: 19,866.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.54 : 42,358.90 = 13,261.98 : x
  2. Step 2: Convert to fraction form
    28,277.54/42,358.90 = 13,261.98/x
  3. Step 3: Cross multiply
    28,277.54x = 42,358.90 × 13,261.98
  4. Step 4: Simplify right side
    28,277.54x = 561,762,884.62
  5. Step 5: Solve for x
    x = 561,762,884.62/28,277.54
  6. Step 6: Final answer
    x = 19,866.05

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1.5x scale

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.