Home / 37,138.57-51,250.52-21,005.60

Finding the Fourth Proportional to 37,138.57, 51,250.52 and 21,005.60

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Solution

The fourth proportional to 37,138.57, 51,250.52 and 21,005.60 is: 28,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.57 : 51,250.52 = 21,005.60 : x
  2. Step 2: Convert to fraction form
    37,138.57/51,250.52 = 21,005.60/x
  3. Step 3: Cross multiply
    37,138.57x = 51,250.52 × 21,005.60
  4. Step 4: Simplify right side
    37,138.57x = 1,076,547,719.17
  5. Step 5: Solve for x
    x = 1,076,547,719.17/37,138.57
  6. Step 6: Final answer
    x = 28,987.32

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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.