Home / 28,230.39-42,352.70-19,926.63

Finding the Fourth Proportional to 28,230.39, 42,352.70 and 19,926.63

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Solution

The fourth proportional to 28,230.39, 42,352.70 and 19,926.63 is: 29,894.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.39 : 42,352.70 = 19,926.63 : x
  2. Step 2: Convert to fraction form
    28,230.39/42,352.70 = 19,926.63/x
  3. Step 3: Cross multiply
    28,230.39x = 42,352.70 × 19,926.63
  4. Step 4: Simplify right side
    28,230.39x = 843,946,482.77
  5. Step 5: Solve for x
    x = 843,946,482.77/28,230.39
  6. Step 6: Final answer
    x = 29,894.96

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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.