Home / 31,385.07-43,312.93-17,238.22

Finding the Fourth Proportional to 31,385.07, 43,312.93 and 17,238.22

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Solution

The fourth proportional to 31,385.07, 43,312.93 and 17,238.22 is: 23,789.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.07 : 43,312.93 = 17,238.22 : x
  2. Step 2: Convert to fraction form
    31,385.07/43,312.93 = 17,238.22/x
  3. Step 3: Cross multiply
    31,385.07x = 43,312.93 × 17,238.22
  4. Step 4: Simplify right side
    31,385.07x = 746,637,664.81
  5. Step 5: Solve for x
    x = 746,637,664.81/31,385.07
  6. Step 6: Final answer
    x = 23,789.58

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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.