Home / 22,143.08-30,559.14-12,714.68

Finding the Fourth Proportional to 22,143.08, 30,559.14 and 12,714.68

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Solution

The fourth proportional to 22,143.08, 30,559.14 and 12,714.68 is: 17,547.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.08 : 30,559.14 = 12,714.68 : x
  2. Step 2: Convert to fraction form
    22,143.08/30,559.14 = 12,714.68/x
  3. Step 3: Cross multiply
    22,143.08x = 30,559.14 × 12,714.68
  4. Step 4: Simplify right side
    22,143.08x = 388,549,686.18
  5. Step 5: Solve for x
    x = 388,549,686.18/22,143.08
  6. Step 6: Final answer
    x = 17,547.23

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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.