Home / 31,313.51-43,215.73-17,886.77

Finding the Fourth Proportional to 31,313.51, 43,215.73 and 17,886.77

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Solution

The fourth proportional to 31,313.51, 43,215.73 and 17,886.77 is: 24,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.51 : 43,215.73 = 17,886.77 : x
  2. Step 2: Convert to fraction form
    31,313.51/43,215.73 = 17,886.77/x
  3. Step 3: Cross multiply
    31,313.51x = 43,215.73 × 17,886.77
  4. Step 4: Simplify right side
    31,313.51x = 772,989,606.81
  5. Step 5: Solve for x
    x = 772,989,606.81/31,313.51
  6. Step 6: Final answer
    x = 24,685.50

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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.