Home / 30,145.02-45,200.61-13,521.03

Finding the Fourth Proportional to 30,145.02, 45,200.61 and 13,521.03

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Solution

The fourth proportional to 30,145.02, 45,200.61 and 13,521.03 is: 20,273.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,145.02 : 45,200.61 = 13,521.03 : x
  2. Step 2: Convert to fraction form
    30,145.02/45,200.61 = 13,521.03/x
  3. Step 3: Cross multiply
    30,145.02x = 45,200.61 × 13,521.03
  4. Step 4: Simplify right side
    30,145.02x = 611,158,803.83
  5. Step 5: Solve for x
    x = 611,158,803.83/30,145.02
  6. Step 6: Final answer
    x = 20,273.96

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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.