Home / 29,157.72-40,218.93-17,820.86

Finding the Fourth Proportional to 29,157.72, 40,218.93 and 17,820.86

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Solution

The fourth proportional to 29,157.72, 40,218.93 and 17,820.86 is: 24,581.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,157.72 : 40,218.93 = 17,820.86 : x
  2. Step 2: Convert to fraction form
    29,157.72/40,218.93 = 17,820.86/x
  3. Step 3: Cross multiply
    29,157.72x = 40,218.93 × 17,820.86
  4. Step 4: Simplify right side
    29,157.72x = 716,735,946.02
  5. Step 5: Solve for x
    x = 716,735,946.02/29,157.72
  6. Step 6: Final answer
    x = 24,581.34

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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.