Home / 28,320.32-42,477.73-8,599.05

Finding the Fourth Proportional to 28,320.32, 42,477.73 and 8,599.05

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Solution

The fourth proportional to 28,320.32, 42,477.73 and 8,599.05 is: 12,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.32 : 42,477.73 = 8,599.05 : x
  2. Step 2: Convert to fraction form
    28,320.32/42,477.73 = 8,599.05/x
  3. Step 3: Cross multiply
    28,320.32x = 42,477.73 × 8,599.05
  4. Step 4: Simplify right side
    28,320.32x = 365,267,911.77
  5. Step 5: Solve for x
    x = 365,267,911.77/28,320.32
  6. Step 6: Final answer
    x = 12,897.73

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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.