Home / 32,012.80-48,019.20-20,953.60

Finding the Fourth Proportional to 32,012.80, 48,019.20 and 20,953.60

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Solution

The fourth proportional to 32,012.80, 48,019.20 and 20,953.60 is: 31,430.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,012.80 : 48,019.20 = 20,953.60 : x
  2. Step 2: Convert to fraction form
    32,012.80/48,019.20 = 20,953.60/x
  3. Step 3: Cross multiply
    32,012.80x = 48,019.20 × 20,953.60
  4. Step 4: Simplify right side
    32,012.80x = 1,006,175,109.12
  5. Step 5: Solve for x
    x = 1,006,175,109.12/32,012.80
  6. Step 6: Final answer
    x = 31,430.40

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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.