Home / 31,239.30-46,864.98-12,521.23

Finding the Fourth Proportional to 31,239.30, 46,864.98 and 12,521.23

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Solution

The fourth proportional to 31,239.30, 46,864.98 and 12,521.23 is: 18,784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,239.30 : 46,864.98 = 12,521.23 : x
  2. Step 2: Convert to fraction form
    31,239.30/46,864.98 = 12,521.23/x
  3. Step 3: Cross multiply
    31,239.30x = 46,864.98 × 12,521.23
  4. Step 4: Simplify right side
    31,239.30x = 586,807,193.53
  5. Step 5: Solve for x
    x = 586,807,193.53/31,239.30
  6. Step 6: Final answer
    x = 18,784.26

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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.