Home / 31,725.36-43,776-17,577.72

Finding the Fourth Proportional to 31,725.36, 43,776 and 17,577.72

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Solution

The fourth proportional to 31,725.36, 43,776 and 17,577.72 is: 24,254.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,725.36 : 43,776 = 17,577.72 : x
  2. Step 2: Convert to fraction form
    31,725.36/43,776 = 17,577.72/x
  3. Step 3: Cross multiply
    31,725.36x = 43,776 × 17,577.72
  4. Step 4: Simplify right side
    31,725.36x = 769,482,270.72
  5. Step 5: Solve for x
    x = 769,482,270.72/31,725.36
  6. Step 6: Final answer
    x = 24,254.49

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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.