Home / 22,547.68-31,124.52-20,185.72

Finding the Fourth Proportional to 22,547.68, 31,124.52 and 20,185.72

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Solution

The fourth proportional to 22,547.68, 31,124.52 and 20,185.72 is: 27,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,547.68 : 31,124.52 = 20,185.72 : x
  2. Step 2: Convert to fraction form
    22,547.68/31,124.52 = 20,185.72/x
  3. Step 3: Cross multiply
    22,547.68x = 31,124.52 × 20,185.72
  4. Step 4: Simplify right side
    22,547.68x = 628,270,845.85
  5. Step 5: Solve for x
    x = 628,270,845.85/22,547.68
  6. Step 6: Final answer
    x = 27,864.10

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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.