Home / 28,277.12-42,417.72-8,557.23

Finding the Fourth Proportional to 28,277.12, 42,417.72 and 8,557.23

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Solution

The fourth proportional to 28,277.12, 42,417.72 and 8,557.23 is: 12,836.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.12 : 42,417.72 = 8,557.23 : x
  2. Step 2: Convert to fraction form
    28,277.12/42,417.72 = 8,557.23/x
  3. Step 3: Cross multiply
    28,277.12x = 42,417.72 × 8,557.23
  4. Step 4: Simplify right side
    28,277.12x = 362,978,186.12
  5. Step 5: Solve for x
    x = 362,978,186.12/28,277.12
  6. Step 6: Final answer
    x = 12,836.46

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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.