Home / 28,870.77-43,307.37-9,148.89

Finding the Fourth Proportional to 28,870.77, 43,307.37 and 9,148.89

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Solution

The fourth proportional to 28,870.77, 43,307.37 and 9,148.89 is: 13,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.77 : 43,307.37 = 9,148.89 : x
  2. Step 2: Convert to fraction form
    28,870.77/43,307.37 = 9,148.89/x
  3. Step 3: Cross multiply
    28,870.77x = 43,307.37 × 9,148.89
  4. Step 4: Simplify right side
    28,870.77x = 396,214,364.32
  5. Step 5: Solve for x
    x = 396,214,364.32/28,870.77
  6. Step 6: Final answer
    x = 13,723.72

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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.