Home / 18,982.02-28,445.34-13,432.35

Finding the Fourth Proportional to 18,982.02, 28,445.34 and 13,432.35

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Solution

The fourth proportional to 18,982.02, 28,445.34 and 13,432.35 is: 20,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.02 : 28,445.34 = 13,432.35 : x
  2. Step 2: Convert to fraction form
    18,982.02/28,445.34 = 13,432.35/x
  3. Step 3: Cross multiply
    18,982.02x = 28,445.34 × 13,432.35
  4. Step 4: Simplify right side
    18,982.02x = 382,087,762.75
  5. Step 5: Solve for x
    x = 382,087,762.75/18,982.02
  6. Step 6: Final answer
    x = 20,128.93

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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.