Home / 37,133.69-51,243.80-21,000.72

Finding the Fourth Proportional to 37,133.69, 51,243.80 and 21,000.72

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Solution

The fourth proportional to 37,133.69, 51,243.80 and 21,000.72 is: 28,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,133.69 : 51,243.80 = 21,000.72 : x
  2. Step 2: Convert to fraction form
    37,133.69/51,243.80 = 21,000.72/x
  3. Step 3: Cross multiply
    37,133.69x = 51,243.80 × 21,000.72
  4. Step 4: Simplify right side
    37,133.69x = 1,076,156,590.53
  5. Step 5: Solve for x
    x = 1,076,156,590.53/37,133.69
  6. Step 6: Final answer
    x = 28,980.60

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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.