Home / 31,801.02-43,905.57-20,474.70

Finding the Fourth Proportional to 31,801.02, 43,905.57 and 20,474.70

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Solution

The fourth proportional to 31,801.02, 43,905.57 and 20,474.70 is: 28,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,801.02 : 43,905.57 = 20,474.70 : x
  2. Step 2: Convert to fraction form
    31,801.02/43,905.57 = 20,474.70/x
  3. Step 3: Cross multiply
    31,801.02x = 43,905.57 × 20,474.70
  4. Step 4: Simplify right side
    31,801.02x = 898,953,374.08
  5. Step 5: Solve for x
    x = 898,953,374.08/31,801.02
  6. Step 6: Final answer
    x = 28,268.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.