Home / 31,398.76-43,337.73-17,977.74

Finding the Fourth Proportional to 31,398.76, 43,337.73 and 17,977.74

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Solution

The fourth proportional to 31,398.76, 43,337.73 and 17,977.74 is: 24,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,398.76 : 43,337.73 = 17,977.74 : x
  2. Step 2: Convert to fraction form
    31,398.76/43,337.73 = 17,977.74/x
  3. Step 3: Cross multiply
    31,398.76x = 43,337.73 × 17,977.74
  4. Step 4: Simplify right side
    31,398.76x = 779,114,225.44
  5. Step 5: Solve for x
    x = 779,114,225.44/31,398.76
  6. Step 6: Final answer
    x = 24,813.53

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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.