Home / 28,247.40-42,371.10-16,437.60

Finding the Fourth Proportional to 28,247.40, 42,371.10 and 16,437.60

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Solution

The fourth proportional to 28,247.40, 42,371.10 and 16,437.60 is: 24,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.40 : 42,371.10 = 16,437.60 : x
  2. Step 2: Convert to fraction form
    28,247.40/42,371.10 = 16,437.60/x
  3. Step 3: Cross multiply
    28,247.40x = 42,371.10 × 16,437.60
  4. Step 4: Simplify right side
    28,247.40x = 696,479,193.36
  5. Step 5: Solve for x
    x = 696,479,193.36/28,247.40
  6. Step 6: Final answer
    x = 24,656.40

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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.