Home / 28,374.36-42,548.30-8,648.70

Finding the Fourth Proportional to 28,374.36, 42,548.30 and 8,648.70

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Solution

The fourth proportional to 28,374.36, 42,548.30 and 8,648.70 is: 12,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.36 : 42,548.30 = 8,648.70 : x
  2. Step 2: Convert to fraction form
    28,374.36/42,548.30 = 8,648.70/x
  3. Step 3: Cross multiply
    28,374.36x = 42,548.30 × 8,648.70
  4. Step 4: Simplify right side
    28,374.36x = 367,987,482.21
  5. Step 5: Solve for x
    x = 367,987,482.21/28,374.36
  6. Step 6: Final answer
    x = 12,969.01

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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.