Home / 31,589.25-47,384.10-21,698.55

Finding the Fourth Proportional to 31,589.25, 47,384.10 and 21,698.55

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Solution

The fourth proportional to 31,589.25, 47,384.10 and 21,698.55 is: 32,547.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.25 : 47,384.10 = 21,698.55 : x
  2. Step 2: Convert to fraction form
    31,589.25/47,384.10 = 21,698.55/x
  3. Step 3: Cross multiply
    31,589.25x = 47,384.10 × 21,698.55
  4. Step 4: Simplify right side
    31,589.25x = 1,028,166,263.06
  5. Step 5: Solve for x
    x = 1,028,166,263.06/31,589.25
  6. Step 6: Final answer
    x = 32,547.98

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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.