Home / 31,803.12-47,703.47-13,077.95

Finding the Fourth Proportional to 31,803.12, 47,703.47 and 13,077.95

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Solution

The fourth proportional to 31,803.12, 47,703.47 and 13,077.95 is: 19,616.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,803.12 : 47,703.47 = 13,077.95 : x
  2. Step 2: Convert to fraction form
    31,803.12/47,703.47 = 13,077.95/x
  3. Step 3: Cross multiply
    31,803.12x = 47,703.47 × 13,077.95
  4. Step 4: Simplify right side
    31,803.12x = 623,863,291.58
  5. Step 5: Solve for x
    x = 623,863,291.58/31,803.12
  6. Step 6: Final answer
    x = 19,616.42

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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.