Home / 31,139.51-46,700.10-14,262.95

Finding the Fourth Proportional to 31,139.51, 46,700.10 and 14,262.95

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Solution

The fourth proportional to 31,139.51, 46,700.10 and 14,262.95 is: 21,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,139.51 : 46,700.10 = 14,262.95 : x
  2. Step 2: Convert to fraction form
    31,139.51/46,700.10 = 14,262.95/x
  3. Step 3: Cross multiply
    31,139.51x = 46,700.10 × 14,262.95
  4. Step 4: Simplify right side
    31,139.51x = 666,081,308.05
  5. Step 5: Solve for x
    x = 666,081,308.05/31,139.51
  6. Step 6: Final answer
    x = 21,390.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.