Home / 20,988.04-28,943.52-16,200.34

Finding the Fourth Proportional to 20,988.04, 28,943.52 and 16,200.34

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Solution

The fourth proportional to 20,988.04, 28,943.52 and 16,200.34 is: 22,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,988.04 : 28,943.52 = 16,200.34 : x
  2. Step 2: Convert to fraction form
    20,988.04/28,943.52 = 16,200.34/x
  3. Step 3: Cross multiply
    20,988.04x = 28,943.52 × 16,200.34
  4. Step 4: Simplify right side
    20,988.04x = 468,894,720.08
  5. Step 5: Solve for x
    x = 468,894,720.08/20,988.04
  6. Step 6: Final answer
    x = 22,341.05

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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.