Home / 20,535.02-30,653.98-18,043.90

Finding the Fourth Proportional to 20,535.02, 30,653.98 and 18,043.90

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Solution

The fourth proportional to 20,535.02, 30,653.98 and 18,043.90 is: 26,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.02 : 30,653.98 = 18,043.90 : x
  2. Step 2: Convert to fraction form
    20,535.02/30,653.98 = 18,043.90/x
  3. Step 3: Cross multiply
    20,535.02x = 30,653.98 × 18,043.90
  4. Step 4: Simplify right side
    20,535.02x = 553,117,349.72
  5. Step 5: Solve for x
    x = 553,117,349.72/20,535.02
  6. Step 6: Final answer
    x = 26,935.32

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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.