Home / 22,359.02-30,853.64-12,928.19

Finding the Fourth Proportional to 22,359.02, 30,853.64 and 12,928.19

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Solution

The fourth proportional to 22,359.02, 30,853.64 and 12,928.19 is: 17,839.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,359.02 : 30,853.64 = 12,928.19 : x
  2. Step 2: Convert to fraction form
    22,359.02/30,853.64 = 12,928.19/x
  3. Step 3: Cross multiply
    22,359.02x = 30,853.64 × 12,928.19
  4. Step 4: Simplify right side
    22,359.02x = 398,881,598.16
  5. Step 5: Solve for x
    x = 398,881,598.16/22,359.02
  6. Step 6: Final answer
    x = 17,839.86

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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.