Home / 28,547.80-42,817.92-12,961.84

Finding the Fourth Proportional to 28,547.80, 42,817.92 and 12,961.84

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Solution

The fourth proportional to 28,547.80, 42,817.92 and 12,961.84 is: 19,441.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.80 : 42,817.92 = 12,961.84 : x
  2. Step 2: Convert to fraction form
    28,547.80/42,817.92 = 12,961.84/x
  3. Step 3: Cross multiply
    28,547.80x = 42,817.92 × 12,961.84
  4. Step 4: Simplify right side
    28,547.80x = 554,999,028.17
  5. Step 5: Solve for x
    x = 554,999,028.17/28,547.80
  6. Step 6: Final answer
    x = 19,441.04

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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.