Home / 37,200.72-51,337.08-20,434.80

Finding the Fourth Proportional to 37,200.72, 51,337.08 and 20,434.80

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Solution

The fourth proportional to 37,200.72, 51,337.08 and 20,434.80 is: 28,200.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,200.72 : 51,337.08 = 20,434.80 : x
  2. Step 2: Convert to fraction form
    37,200.72/51,337.08 = 20,434.80/x
  3. Step 3: Cross multiply
    37,200.72x = 51,337.08 × 20,434.80
  4. Step 4: Simplify right side
    37,200.72x = 1,049,062,962.38
  5. Step 5: Solve for x
    x = 1,049,062,962.38/37,200.72
  6. Step 6: Final answer
    x = 28,200.07

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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.