Home / 32,421.22-44,778.20-21,792.40

Finding the Fourth Proportional to 32,421.22, 44,778.20 and 21,792.40

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Solution

The fourth proportional to 32,421.22, 44,778.20 and 21,792.40 is: 30,098.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,421.22 : 44,778.20 = 21,792.40 : x
  2. Step 2: Convert to fraction form
    32,421.22/44,778.20 = 21,792.40/x
  3. Step 3: Cross multiply
    32,421.22x = 44,778.20 × 21,792.40
  4. Step 4: Simplify right side
    32,421.22x = 975,824,445.68
  5. Step 5: Solve for x
    x = 975,824,445.68/32,421.22
  6. Step 6: Final answer
    x = 30,098.33

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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.