Home / 28,219.56-38,941.10-16,283.40

Finding the Fourth Proportional to 28,219.56, 38,941.10 and 16,283.40

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Solution

The fourth proportional to 28,219.56, 38,941.10 and 16,283.40 is: 22,470.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.56 : 38,941.10 = 16,283.40 : x
  2. Step 2: Convert to fraction form
    28,219.56/38,941.10 = 16,283.40/x
  3. Step 3: Cross multiply
    28,219.56x = 38,941.10 × 16,283.40
  4. Step 4: Simplify right side
    28,219.56x = 634,093,507.74
  5. Step 5: Solve for x
    x = 634,093,507.74/28,219.56
  6. Step 6: Final answer
    x = 22,470.00

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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.