Home / 31,374.16-47,070.46-12,644.58

Finding the Fourth Proportional to 31,374.16, 47,070.46 and 12,644.58

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Solution

The fourth proportional to 31,374.16, 47,070.46 and 12,644.58 is: 18,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,374.16 : 47,070.46 = 12,644.58 : x
  2. Step 2: Convert to fraction form
    31,374.16/47,070.46 = 12,644.58/x
  3. Step 3: Cross multiply
    31,374.16x = 47,070.46 × 12,644.58
  4. Step 4: Simplify right side
    31,374.16x = 595,186,342.01
  5. Step 5: Solve for x
    x = 595,186,342.01/31,374.16
  6. Step 6: Final answer
    x = 18,970.59

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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.