Home / 30,230.10-45,298.95-20,332.74

Finding the Fourth Proportional to 30,230.10, 45,298.95 and 20,332.74

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Solution

The fourth proportional to 30,230.10, 45,298.95 and 20,332.74 is: 30,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.10 : 45,298.95 = 20,332.74 : x
  2. Step 2: Convert to fraction form
    30,230.10/45,298.95 = 20,332.74/x
  3. Step 3: Cross multiply
    30,230.10x = 45,298.95 × 20,332.74
  4. Step 4: Simplify right side
    30,230.10x = 921,051,772.62
  5. Step 5: Solve for x
    x = 921,051,772.62/30,230.10
  6. Step 6: Final answer
    x = 30,468.04

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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.