Home / 28,722.84-42,840.12-28,224.96

Finding the Fourth Proportional to 28,722.84, 42,840.12 and 28,224.96

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Solution

The fourth proportional to 28,722.84, 42,840.12 and 28,224.96 is: 42,097.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.84 : 42,840.12 = 28,224.96 : x
  2. Step 2: Convert to fraction form
    28,722.84/42,840.12 = 28,224.96/x
  3. Step 3: Cross multiply
    28,722.84x = 42,840.12 × 28,224.96
  4. Step 4: Simplify right side
    28,722.84x = 1,209,160,673.40
  5. Step 5: Solve for x
    x = 1,209,160,673.40/28,722.84
  6. Step 6: Final answer
    x = 42,097.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.