Home / 31,596.44-47,421.95-12,886.79

Finding the Fourth Proportional to 31,596.44, 47,421.95 and 12,886.79

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Solution

The fourth proportional to 31,596.44, 47,421.95 and 12,886.79 is: 19,341.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,596.44 : 47,421.95 = 12,886.79 : x
  2. Step 2: Convert to fraction form
    31,596.44/47,421.95 = 12,886.79/x
  3. Step 3: Cross multiply
    31,596.44x = 47,421.95 × 12,886.79
  4. Step 4: Simplify right side
    31,596.44x = 611,116,409.50
  5. Step 5: Solve for x
    x = 611,116,409.50/31,596.44
  6. Step 6: Final answer
    x = 19,341.31

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1.5x scale

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.