Home / 31,921.64-44,052.91-18,312.02

Finding the Fourth Proportional to 31,921.64, 44,052.91 and 18,312.02

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Solution

The fourth proportional to 31,921.64, 44,052.91 and 18,312.02 is: 25,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.64 : 44,052.91 = 18,312.02 : x
  2. Step 2: Convert to fraction form
    31,921.64/44,052.91 = 18,312.02/x
  3. Step 3: Cross multiply
    31,921.64x = 44,052.91 × 18,312.02
  4. Step 4: Simplify right side
    31,921.64x = 806,697,502.93
  5. Step 5: Solve for x
    x = 806,697,502.93/31,921.64
  6. Step 6: Final answer
    x = 25,271.18

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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.