Home / 30,836.02-42,553.74-16,688.92

Finding the Fourth Proportional to 30,836.02, 42,553.74 and 16,688.92

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Solution

The fourth proportional to 30,836.02, 42,553.74 and 16,688.92 is: 23,030.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,836.02 : 42,553.74 = 16,688.92 : x
  2. Step 2: Convert to fraction form
    30,836.02/42,553.74 = 16,688.92/x
  3. Step 3: Cross multiply
    30,836.02x = 42,553.74 × 16,688.92
  4. Step 4: Simplify right side
    30,836.02x = 710,175,962.56
  5. Step 5: Solve for x
    x = 710,175,962.56/30,836.02
  6. Step 6: Final answer
    x = 23,030.73

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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.