Home / 31,783.31-47,656.51-12,051.11

Finding the Fourth Proportional to 31,783.31, 47,656.51 and 12,051.11

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Solution

The fourth proportional to 31,783.31, 47,656.51 and 12,051.11 is: 18,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,783.31 : 47,656.51 = 12,051.11 : x
  2. Step 2: Convert to fraction form
    31,783.31/47,656.51 = 12,051.11/x
  3. Step 3: Cross multiply
    31,783.31x = 47,656.51 × 12,051.11
  4. Step 4: Simplify right side
    31,783.31x = 574,313,575.82
  5. Step 5: Solve for x
    x = 574,313,575.82/31,783.31
  6. Step 6: Final answer
    x = 18,069.66

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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.