Home / 32,121.90-48,145.59-18,985.32

Finding the Fourth Proportional to 32,121.90, 48,145.59 and 18,985.32

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Solution

The fourth proportional to 32,121.90, 48,145.59 and 18,985.32 is: 28,455.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,121.90 : 48,145.59 = 18,985.32 : x
  2. Step 2: Convert to fraction form
    32,121.90/48,145.59 = 18,985.32/x
  3. Step 3: Cross multiply
    32,121.90x = 48,145.59 × 18,985.32
  4. Step 4: Simplify right side
    32,121.90x = 914,059,432.74
  5. Step 5: Solve for x
    x = 914,059,432.74/32,121.90
  6. Step 6: Final answer
    x = 28,455.96

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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.