Home / 28,497.34-42,754.65-20,193.45

Finding the Fourth Proportional to 28,497.34, 42,754.65 and 20,193.45

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Solution

The fourth proportional to 28,497.34, 42,754.65 and 20,193.45 is: 30,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.34 : 42,754.65 = 20,193.45 : x
  2. Step 2: Convert to fraction form
    28,497.34/42,754.65 = 20,193.45/x
  3. Step 3: Cross multiply
    28,497.34x = 42,754.65 × 20,193.45
  4. Step 4: Simplify right side
    28,497.34x = 863,363,887.04
  5. Step 5: Solve for x
    x = 863,363,887.04/28,497.34
  6. Step 6: Final answer
    x = 30,296.30

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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.