Home / 28,985.34-43,496.54-12,345.46

Finding the Fourth Proportional to 28,985.34, 43,496.54 and 12,345.46

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Solution

The fourth proportional to 28,985.34, 43,496.54 and 12,345.46 is: 18,526.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.34 : 43,496.54 = 12,345.46 : x
  2. Step 2: Convert to fraction form
    28,985.34/43,496.54 = 12,345.46/x
  3. Step 3: Cross multiply
    28,985.34x = 43,496.54 × 12,345.46
  4. Step 4: Simplify right side
    28,985.34x = 536,984,984.65
  5. Step 5: Solve for x
    x = 536,984,984.65/28,985.34
  6. Step 6: Final answer
    x = 18,526.09

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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.