Home / 28,178.70-42,264.41-10,646.25

Finding the Fourth Proportional to 28,178.70, 42,264.41 and 10,646.25

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Solution

The fourth proportional to 28,178.70, 42,264.41 and 10,646.25 is: 15,968.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.70 : 42,264.41 = 10,646.25 : x
  2. Step 2: Convert to fraction form
    28,178.70/42,264.41 = 10,646.25/x
  3. Step 3: Cross multiply
    28,178.70x = 42,264.41 × 10,646.25
  4. Step 4: Simplify right side
    28,178.70x = 449,957,421.73
  5. Step 5: Solve for x
    x = 449,957,421.73/28,178.70
  6. Step 6: Final answer
    x = 15,968.00

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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.