Home / 28,560.02-42,905.73-20,260.58

Finding the Fourth Proportional to 28,560.02, 42,905.73 and 20,260.58

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Solution

The fourth proportional to 28,560.02, 42,905.73 and 20,260.58 is: 30,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.02 : 42,905.73 = 20,260.58 : x
  2. Step 2: Convert to fraction form
    28,560.02/42,905.73 = 20,260.58/x
  3. Step 3: Cross multiply
    28,560.02x = 42,905.73 × 20,260.58
  4. Step 4: Simplify right side
    28,560.02x = 869,294,975.12
  5. Step 5: Solve for x
    x = 869,294,975.12/28,560.02
  6. Step 6: Final answer
    x = 30,437.48

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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.