Home / 30,152.52-45,230.40-12,623.04

Finding the Fourth Proportional to 30,152.52, 45,230.40 and 12,623.04

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Solution

The fourth proportional to 30,152.52, 45,230.40 and 12,623.04 is: 18,935.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.52 : 45,230.40 = 12,623.04 : x
  2. Step 2: Convert to fraction form
    30,152.52/45,230.40 = 12,623.04/x
  3. Step 3: Cross multiply
    30,152.52x = 45,230.40 × 12,623.04
  4. Step 4: Simplify right side
    30,152.52x = 570,945,148.42
  5. Step 5: Solve for x
    x = 570,945,148.42/30,152.52
  6. Step 6: Final answer
    x = 18,935.24

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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.