Home / 31,071.90-46,582.34-12,343.89

Finding the Fourth Proportional to 31,071.90, 46,582.34 and 12,343.89

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Solution

The fourth proportional to 31,071.90, 46,582.34 and 12,343.89 is: 18,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,071.90 : 46,582.34 = 12,343.89 : x
  2. Step 2: Convert to fraction form
    31,071.90/46,582.34 = 12,343.89/x
  3. Step 3: Cross multiply
    31,071.90x = 46,582.34 × 12,343.89
  4. Step 4: Simplify right side
    31,071.90x = 575,007,219.18
  5. Step 5: Solve for x
    x = 575,007,219.18/31,071.90
  6. Step 6: Final answer
    x = 18,505.70

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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.