Home / 31,389.93-43,324.47-19,284.89

Finding the Fourth Proportional to 31,389.93, 43,324.47 and 19,284.89

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Solution

The fourth proportional to 31,389.93, 43,324.47 and 19,284.89 is: 26,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.93 : 43,324.47 = 19,284.89 : x
  2. Step 2: Convert to fraction form
    31,389.93/43,324.47 = 19,284.89/x
  3. Step 3: Cross multiply
    31,389.93x = 43,324.47 × 19,284.89
  4. Step 4: Simplify right side
    31,389.93x = 835,507,421.64
  5. Step 5: Solve for x
    x = 835,507,421.64/31,389.93
  6. Step 6: Final answer
    x = 26,617.05

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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.