Home / 31,159.95-46,739.99-13,631.14

Finding the Fourth Proportional to 31,159.95, 46,739.99 and 13,631.14

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Solution

The fourth proportional to 31,159.95, 46,739.99 and 13,631.14 is: 20,446.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.95 : 46,739.99 = 13,631.14 : x
  2. Step 2: Convert to fraction form
    31,159.95/46,739.99 = 13,631.14/x
  3. Step 3: Cross multiply
    31,159.95x = 46,739.99 × 13,631.14
  4. Step 4: Simplify right side
    31,159.95x = 637,119,347.29
  5. Step 5: Solve for x
    x = 637,119,347.29/31,159.95
  6. Step 6: Final answer
    x = 20,446.74

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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.