Home / 30,912.48-46,369.08-8,726.40

Finding the Fourth Proportional to 30,912.48, 46,369.08 and 8,726.40

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Solution

The fourth proportional to 30,912.48, 46,369.08 and 8,726.40 is: 13,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,912.48 : 46,369.08 = 8,726.40 : x
  2. Step 2: Convert to fraction form
    30,912.48/46,369.08 = 8,726.40/x
  3. Step 3: Cross multiply
    30,912.48x = 46,369.08 × 8,726.40
  4. Step 4: Simplify right side
    30,912.48x = 404,635,139.71
  5. Step 5: Solve for x
    x = 404,635,139.71/30,912.48
  6. Step 6: Final answer
    x = 13,089.70

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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.