Home / 31,140.54-42,975.18-17,713.02

Finding the Fourth Proportional to 31,140.54, 42,975.18 and 17,713.02

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Solution

The fourth proportional to 31,140.54, 42,975.18 and 17,713.02 is: 24,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140.54 : 42,975.18 = 17,713.02 : x
  2. Step 2: Convert to fraction form
    31,140.54/42,975.18 = 17,713.02/x
  3. Step 3: Cross multiply
    31,140.54x = 42,975.18 × 17,713.02
  4. Step 4: Simplify right side
    31,140.54x = 761,220,222.84
  5. Step 5: Solve for x
    x = 761,220,222.84/31,140.54
  6. Step 6: Final answer
    x = 24,444.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.