Home / 20,648.61-30,754.37-20,547.92

Finding the Fourth Proportional to 20,648.61, 30,754.37 and 20,547.92

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Solution

The fourth proportional to 20,648.61, 30,754.37 and 20,547.92 is: 30,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.61 : 30,754.37 = 20,547.92 : x
  2. Step 2: Convert to fraction form
    20,648.61/30,754.37 = 20,547.92/x
  3. Step 3: Cross multiply
    20,648.61x = 30,754.37 × 20,547.92
  4. Step 4: Simplify right side
    20,648.61x = 631,938,308.56
  5. Step 5: Solve for x
    x = 631,938,308.56/20,648.61
  6. Step 6: Final answer
    x = 30,604.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.