Home / 20,030.32-30,045.20-5,990.46

Finding the Fourth Proportional to 20,030.32, 30,045.20 and 5,990.46

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Solution

The fourth proportional to 20,030.32, 30,045.20 and 5,990.46 is: 8,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.32 : 30,045.20 = 5,990.46 : x
  2. Step 2: Convert to fraction form
    20,030.32/30,045.20 = 5,990.46/x
  3. Step 3: Cross multiply
    20,030.32x = 30,045.20 × 5,990.46
  4. Step 4: Simplify right side
    20,030.32x = 179,984,426.17
  5. Step 5: Solve for x
    x = 179,984,426.17/20,030.32
  6. Step 6: Final answer
    x = 8,985.60

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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.