Home / 31,070.97-42,879.75-23,400.51

Finding the Fourth Proportional to 31,070.97, 42,879.75 and 23,400.51

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Solution

The fourth proportional to 31,070.97, 42,879.75 and 23,400.51 is: 32,294.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070.97 : 42,879.75 = 23,400.51 : x
  2. Step 2: Convert to fraction form
    31,070.97/42,879.75 = 23,400.51/x
  3. Step 3: Cross multiply
    31,070.97x = 42,879.75 × 23,400.51
  4. Step 4: Simplify right side
    31,070.97x = 1,003,408,018.67
  5. Step 5: Solve for x
    x = 1,003,408,018.67/31,070.97
  6. Step 6: Final answer
    x = 32,294.07

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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.