Home / 35,818.64-53,728.50-12,445.64

Finding the Fourth Proportional to 35,818.64, 53,728.50 and 12,445.64

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Solution

The fourth proportional to 35,818.64, 53,728.50 and 12,445.64 is: 18,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,818.64 : 53,728.50 = 12,445.64 : x
  2. Step 2: Convert to fraction form
    35,818.64/53,728.50 = 12,445.64/x
  3. Step 3: Cross multiply
    35,818.64x = 53,728.50 × 12,445.64
  4. Step 4: Simplify right side
    35,818.64x = 668,685,568.74
  5. Step 5: Solve for x
    x = 668,685,568.74/35,818.64
  6. Step 6: Final answer
    x = 18,668.65

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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.