Home / 20,555.07-28,364.02-16,316.39

Finding the Fourth Proportional to 20,555.07, 28,364.02 and 16,316.39

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Solution

The fourth proportional to 20,555.07, 28,364.02 and 16,316.39 is: 22,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.07 : 28,364.02 = 16,316.39 : x
  2. Step 2: Convert to fraction form
    20,555.07/28,364.02 = 16,316.39/x
  3. Step 3: Cross multiply
    20,555.07x = 28,364.02 × 16,316.39
  4. Step 4: Simplify right side
    20,555.07x = 462,798,374.64
  5. Step 5: Solve for x
    x = 462,798,374.64/20,555.07
  6. Step 6: Final answer
    x = 22,515.05

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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.