Home / 20,070.22-27,701.50-13,356.12

Finding the Fourth Proportional to 20,070.22, 27,701.50 and 13,356.12

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Solution

The fourth proportional to 20,070.22, 27,701.50 and 13,356.12 is: 18,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.22 : 27,701.50 = 13,356.12 : x
  2. Step 2: Convert to fraction form
    20,070.22/27,701.50 = 13,356.12/x
  3. Step 3: Cross multiply
    20,070.22x = 27,701.50 × 13,356.12
  4. Step 4: Simplify right side
    20,070.22x = 369,984,558.18
  5. Step 5: Solve for x
    x = 369,984,558.18/20,070.22
  6. Step 6: Final answer
    x = 18,434.50

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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.