Home / 31,499.52-43,472.64-18,072

Finding the Fourth Proportional to 31,499.52, 43,472.64 and 18,072

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Solution

The fourth proportional to 31,499.52, 43,472.64 and 18,072 is: 24,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,499.52 : 43,472.64 = 18,072 : x
  2. Step 2: Convert to fraction form
    31,499.52/43,472.64 = 18,072/x
  3. Step 3: Cross multiply
    31,499.52x = 43,472.64 × 18,072
  4. Step 4: Simplify right side
    31,499.52x = 785,637,550.08
  5. Step 5: Solve for x
    x = 785,637,550.08/31,499.52
  6. Step 6: Final answer
    x = 24,941.25

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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.