Home / 28,870.98-43,307.70-9,149.10

Finding the Fourth Proportional to 28,870.98, 43,307.70 and 9,149.10

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Solution

The fourth proportional to 28,870.98, 43,307.70 and 9,149.10 is: 13,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.98 : 43,307.70 = 9,149.10 : x
  2. Step 2: Convert to fraction form
    28,870.98/43,307.70 = 9,149.10/x
  3. Step 3: Cross multiply
    28,870.98x = 43,307.70 × 9,149.10
  4. Step 4: Simplify right side
    28,870.98x = 396,226,478.07
  5. Step 5: Solve for x
    x = 396,226,478.07/28,870.98
  6. Step 6: Final answer
    x = 13,724.04

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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.