Home / 36,430.86-50,275.53-20,515.86

Finding the Fourth Proportional to 36,430.86, 50,275.53 and 20,515.86

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Solution

The fourth proportional to 36,430.86, 50,275.53 and 20,515.86 is: 28,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,430.86 : 50,275.53 = 20,515.86 : x
  2. Step 2: Convert to fraction form
    36,430.86/50,275.53 = 20,515.86/x
  3. Step 3: Cross multiply
    36,430.86x = 50,275.53 × 20,515.86
  4. Step 4: Simplify right side
    36,430.86x = 1,031,445,734.91
  5. Step 5: Solve for x
    x = 1,031,445,734.91/36,430.86
  6. Step 6: Final answer
    x = 28,312.42

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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.