Home / 30,732.04-42,410.76-18,156.76

Finding the Fourth Proportional to 30,732.04, 42,410.76 and 18,156.76

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Solution

The fourth proportional to 30,732.04, 42,410.76 and 18,156.76 is: 25,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732.04 : 42,410.76 = 18,156.76 : x
  2. Step 2: Convert to fraction form
    30,732.04/42,410.76 = 18,156.76/x
  3. Step 3: Cross multiply
    30,732.04x = 42,410.76 × 18,156.76
  4. Step 4: Simplify right side
    30,732.04x = 770,041,990.74
  5. Step 5: Solve for x
    x = 770,041,990.74/30,732.04
  6. Step 6: Final answer
    x = 25,056.65

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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.