Home / 30,820.02-42,531.28-17,395.62

Finding the Fourth Proportional to 30,820.02, 42,531.28 and 17,395.62

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Solution

The fourth proportional to 30,820.02, 42,531.28 and 17,395.62 is: 24,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820.02 : 42,531.28 = 17,395.62 : x
  2. Step 2: Convert to fraction form
    30,820.02/42,531.28 = 17,395.62/x
  3. Step 3: Cross multiply
    30,820.02x = 42,531.28 × 17,395.62
  4. Step 4: Simplify right side
    30,820.02x = 739,857,984.99
  5. Step 5: Solve for x
    x = 739,857,984.99/30,820.02
  6. Step 6: Final answer
    x = 24,005.76

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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.