Home / 30,685.14-45,990.02-15,885.62

Finding the Fourth Proportional to 30,685.14, 45,990.02 and 15,885.62

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Solution

The fourth proportional to 30,685.14, 45,990.02 and 15,885.62 is: 23,808.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,685.14 : 45,990.02 = 15,885.62 : x
  2. Step 2: Convert to fraction form
    30,685.14/45,990.02 = 15,885.62/x
  3. Step 3: Cross multiply
    30,685.14x = 45,990.02 × 15,885.62
  4. Step 4: Simplify right side
    30,685.14x = 730,579,981.51
  5. Step 5: Solve for x
    x = 730,579,981.51/30,685.14
  6. Step 6: Final answer
    x = 23,808.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.