Home / 31,317.24-43,208.28-19,376.40

Finding the Fourth Proportional to 31,317.24, 43,208.28 and 19,376.40

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Solution

The fourth proportional to 31,317.24, 43,208.28 and 19,376.40 is: 26,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,317.24 : 43,208.28 = 19,376.40 : x
  2. Step 2: Convert to fraction form
    31,317.24/43,208.28 = 19,376.40/x
  3. Step 3: Cross multiply
    31,317.24x = 43,208.28 × 19,376.40
  4. Step 4: Simplify right side
    31,317.24x = 837,220,916.59
  5. Step 5: Solve for x
    x = 837,220,916.59/31,317.24
  6. Step 6: Final answer
    x = 26,733.55

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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.