Home / 28,327.02-42,490.50-13,490.94

Finding the Fourth Proportional to 28,327.02, 42,490.50 and 13,490.94

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Solution

The fourth proportional to 28,327.02, 42,490.50 and 13,490.94 is: 20,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.02 : 42,490.50 = 13,490.94 : x
  2. Step 2: Convert to fraction form
    28,327.02/42,490.50 = 13,490.94/x
  3. Step 3: Cross multiply
    28,327.02x = 42,490.50 × 13,490.94
  4. Step 4: Simplify right side
    28,327.02x = 573,236,786.07
  5. Step 5: Solve for x
    x = 573,236,786.07/28,327.02
  6. Step 6: Final answer
    x = 20,236.40

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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.