Home / 28,030.76-42,072.38-14,189.48

Finding the Fourth Proportional to 28,030.76, 42,072.38 and 14,189.48

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Solution

The fourth proportional to 28,030.76, 42,072.38 and 14,189.48 is: 21,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.76 : 42,072.38 = 14,189.48 : x
  2. Step 2: Convert to fraction form
    28,030.76/42,072.38 = 14,189.48/x
  3. Step 3: Cross multiply
    28,030.76x = 42,072.38 × 14,189.48
  4. Step 4: Simplify right side
    28,030.76x = 596,985,194.56
  5. Step 5: Solve for x
    x = 596,985,194.56/28,030.76
  6. Step 6: Final answer
    x = 21,297.50

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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.