Home / 40,335.72-60,515.86-20,628.12

Finding the Fourth Proportional to 40,335.72, 60,515.86 and 20,628.12

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Solution

The fourth proportional to 40,335.72, 60,515.86 and 20,628.12 is: 30,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,335.72 : 60,515.86 = 20,628.12 : x
  2. Step 2: Convert to fraction form
    40,335.72/60,515.86 = 20,628.12/x
  3. Step 3: Cross multiply
    40,335.72x = 60,515.86 × 20,628.12
  4. Step 4: Simplify right side
    40,335.72x = 1,248,328,421.98
  5. Step 5: Solve for x
    x = 1,248,328,421.98/40,335.72
  6. Step 6: Final answer
    x = 30,948.46

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1.5x scale

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.