Home / 31,463.20-43,415.76-18,038.08

Finding the Fourth Proportional to 31,463.20, 43,415.76 and 18,038.08

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Solution

The fourth proportional to 31,463.20, 43,415.76 and 18,038.08 is: 24,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,463.20 : 43,415.76 = 18,038.08 : x
  2. Step 2: Convert to fraction form
    31,463.20/43,415.76 = 18,038.08/x
  3. Step 3: Cross multiply
    31,463.20x = 43,415.76 × 18,038.08
  4. Step 4: Simplify right side
    31,463.20x = 783,136,952.14
  5. Step 5: Solve for x
    x = 783,136,952.14/31,463.20
  6. Step 6: Final answer
    x = 24,890.57

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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.