Home / 31,587.84-43,362.18-31,292.64

Finding the Fourth Proportional to 31,587.84, 43,362.18 and 31,292.64

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Solution

The fourth proportional to 31,587.84, 43,362.18 and 31,292.64 is: 42,956.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,587.84 : 43,362.18 = 31,292.64 : x
  2. Step 2: Convert to fraction form
    31,587.84/43,362.18 = 31,292.64/x
  3. Step 3: Cross multiply
    31,587.84x = 43,362.18 × 31,292.64
  4. Step 4: Simplify right side
    31,587.84x = 1,356,917,088.36
  5. Step 5: Solve for x
    x = 1,356,917,088.36/31,587.84
  6. Step 6: Final answer
    x = 42,956.94

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.