Home / 34,678.48-52,005.40-12,485.89

Finding the Fourth Proportional to 34,678.48, 52,005.40 and 12,485.89

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Solution

The fourth proportional to 34,678.48, 52,005.40 and 12,485.89 is: 18,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,678.48 : 52,005.40 = 12,485.89 : x
  2. Step 2: Convert to fraction form
    34,678.48/52,005.40 = 12,485.89/x
  3. Step 3: Cross multiply
    34,678.48x = 52,005.40 × 12,485.89
  4. Step 4: Simplify right side
    34,678.48x = 649,333,703.81
  5. Step 5: Solve for x
    x = 649,333,703.81/34,678.48
  6. Step 6: Final answer
    x = 18,724.40

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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.