Home / 31,369.12-43,295.52-19,437.76

Finding the Fourth Proportional to 31,369.12, 43,295.52 and 19,437.76

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Solution

The fourth proportional to 31,369.12, 43,295.52 and 19,437.76 is: 26,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.12 : 43,295.52 = 19,437.76 : x
  2. Step 2: Convert to fraction form
    31,369.12/43,295.52 = 19,437.76/x
  3. Step 3: Cross multiply
    31,369.12x = 43,295.52 × 19,437.76
  4. Step 4: Simplify right side
    31,369.12x = 841,567,926.84
  5. Step 5: Solve for x
    x = 841,567,926.84/31,369.12
  6. Step 6: Final answer
    x = 26,827.91

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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.