Home / 47,209.74-65,143.71-28,090.08

Finding the Fourth Proportional to 47,209.74, 65,143.71 and 28,090.08

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Solution

The fourth proportional to 47,209.74, 65,143.71 and 28,090.08 is: 38,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,209.74 : 65,143.71 = 28,090.08 : x
  2. Step 2: Convert to fraction form
    47,209.74/65,143.71 = 28,090.08/x
  3. Step 3: Cross multiply
    47,209.74x = 65,143.71 × 28,090.08
  4. Step 4: Simplify right side
    47,209.74x = 1,829,892,025.40
  5. Step 5: Solve for x
    x = 1,829,892,025.40/47,209.74
  6. Step 6: Final answer
    x = 38,760.90

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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.