Home / 23,147.40-31,943.43-13,075.86

Finding the Fourth Proportional to 23,147.40, 31,943.43 and 13,075.86

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Solution

The fourth proportional to 23,147.40, 31,943.43 and 13,075.86 is: 18,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,147.40 : 31,943.43 = 13,075.86 : x
  2. Step 2: Convert to fraction form
    23,147.40/31,943.43 = 13,075.86/x
  3. Step 3: Cross multiply
    23,147.40x = 31,943.43 × 13,075.86
  4. Step 4: Simplify right side
    23,147.40x = 417,687,818.60
  5. Step 5: Solve for x
    x = 417,687,818.60/23,147.40
  6. Step 6: Final answer
    x = 18,044.70

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1.5x scale

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.