Home / 19,962.64-29,767.87-18,981.60

Finding the Fourth Proportional to 19,962.64, 29,767.87 and 18,981.60

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Solution

The fourth proportional to 19,962.64, 29,767.87 and 18,981.60 is: 28,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,962.64 : 29,767.87 = 18,981.60 : x
  2. Step 2: Convert to fraction form
    19,962.64/29,767.87 = 18,981.60/x
  3. Step 3: Cross multiply
    19,962.64x = 29,767.87 × 18,981.60
  4. Step 4: Simplify right side
    19,962.64x = 565,041,801.19
  5. Step 5: Solve for x
    x = 565,041,801.19/19,962.64
  6. Step 6: Final answer
    x = 28,304.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.