Home / 28,885.41-43,330.55-9,159.89

Finding the Fourth Proportional to 28,885.41, 43,330.55 and 9,159.89

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Solution

The fourth proportional to 28,885.41, 43,330.55 and 9,159.89 is: 13,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.41 : 43,330.55 = 9,159.89 : x
  2. Step 2: Convert to fraction form
    28,885.41/43,330.55 = 9,159.89/x
  3. Step 3: Cross multiply
    28,885.41x = 43,330.55 × 9,159.89
  4. Step 4: Simplify right side
    28,885.41x = 396,902,809.19
  5. Step 5: Solve for x
    x = 396,902,809.19/28,885.41
  6. Step 6: Final answer
    x = 13,740.60

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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.