Home / 30,820.95-42,532.99-16,673.80

Finding the Fourth Proportional to 30,820.95, 42,532.99 and 16,673.80

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Solution

The fourth proportional to 30,820.95, 42,532.99 and 16,673.80 is: 23,009.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820.95 : 42,532.99 = 16,673.80 : x
  2. Step 2: Convert to fraction form
    30,820.95/42,532.99 = 16,673.80/x
  3. Step 3: Cross multiply
    30,820.95x = 42,532.99 × 16,673.80
  4. Step 4: Simplify right side
    30,820.95x = 709,186,272.63
  5. Step 5: Solve for x
    x = 709,186,272.63/30,820.95
  6. Step 6: Final answer
    x = 23,009.88

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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.