Home / 31,578.08-43,578.10-17,430.94

Finding the Fourth Proportional to 31,578.08, 43,578.10 and 17,430.94

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Solution

The fourth proportional to 31,578.08, 43,578.10 and 17,430.94 is: 24,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.08 : 43,578.10 = 17,430.94 : x
  2. Step 2: Convert to fraction form
    31,578.08/43,578.10 = 17,430.94/x
  3. Step 3: Cross multiply
    31,578.08x = 43,578.10 × 17,430.94
  4. Step 4: Simplify right side
    31,578.08x = 759,607,246.41
  5. Step 5: Solve for x
    x = 759,607,246.41/31,578.08
  6. Step 6: Final answer
    x = 24,054.89

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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.