Home / 30,767.63-42,459.32-16,620.47

Finding the Fourth Proportional to 30,767.63, 42,459.32 and 16,620.47

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Solution

The fourth proportional to 30,767.63, 42,459.32 and 16,620.47 is: 22,936.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767.63 : 42,459.32 = 16,620.47 : x
  2. Step 2: Convert to fraction form
    30,767.63/42,459.32 = 16,620.47/x
  3. Step 3: Cross multiply
    30,767.63x = 42,459.32 × 16,620.47
  4. Step 4: Simplify right side
    30,767.63x = 705,693,842.76
  5. Step 5: Solve for x
    x = 705,693,842.76/30,767.63
  6. Step 6: Final answer
    x = 22,936.25

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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.