Home / 29,395.47-40,543.52-20,438.49

Finding the Fourth Proportional to 29,395.47, 40,543.52 and 20,438.49

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Solution

The fourth proportional to 29,395.47, 40,543.52 and 20,438.49 is: 28,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,395.47 : 40,543.52 = 20,438.49 : x
  2. Step 2: Convert to fraction form
    29,395.47/40,543.52 = 20,438.49/x
  3. Step 3: Cross multiply
    29,395.47x = 40,543.52 × 20,438.49
  4. Step 4: Simplify right side
    29,395.47x = 828,648,328.08
  5. Step 5: Solve for x
    x = 828,648,328.08/29,395.47
  6. Step 6: Final answer
    x = 28,189.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.