Home / 20,405.02-30,543.93-15,712.84

Finding the Fourth Proportional to 20,405.02, 30,543.93 and 15,712.84

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Solution

The fourth proportional to 20,405.02, 30,543.93 and 15,712.84 is: 23,520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405.02 : 30,543.93 = 15,712.84 : x
  2. Step 2: Convert to fraction form
    20,405.02/30,543.93 = 15,712.84/x
  3. Step 3: Cross multiply
    20,405.02x = 30,543.93 × 15,712.84
  4. Step 4: Simplify right side
    20,405.02x = 479,931,885.06
  5. Step 5: Solve for x
    x = 479,931,885.06/20,405.02
  6. Step 6: Final answer
    x = 23,520.28

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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.