Home / 22,714.13-31,345.67-12,643.00

Finding the Fourth Proportional to 22,714.13, 31,345.67 and 12,643.00

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Solution

The fourth proportional to 22,714.13, 31,345.67 and 12,643.00 is: 17,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,714.13 : 31,345.67 = 12,643.00 : x
  2. Step 2: Convert to fraction form
    22,714.13/31,345.67 = 12,643.00/x
  3. Step 3: Cross multiply
    22,714.13x = 31,345.67 × 12,643.00
  4. Step 4: Simplify right side
    22,714.13x = 396,303,085.87
  5. Step 5: Solve for x
    x = 396,303,085.87/22,714.13
  6. Step 6: Final answer
    x = 17,447.43

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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.