Home / 31,427.10-47,140.63-9,240.66

Finding the Fourth Proportional to 31,427.10, 47,140.63 and 9,240.66

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Solution

The fourth proportional to 31,427.10, 47,140.63 and 9,240.66 is: 13,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.10 : 47,140.63 = 9,240.66 : x
  2. Step 2: Convert to fraction form
    31,427.10/47,140.63 = 9,240.66/x
  3. Step 3: Cross multiply
    31,427.10x = 47,140.63 × 9,240.66
  4. Step 4: Simplify right side
    31,427.10x = 435,610,534.02
  5. Step 5: Solve for x
    x = 435,610,534.02/31,427.10
  6. Step 6: Final answer
    x = 13,860.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.