Home / 37,686.32-52,004.52-20,918

Finding the Fourth Proportional to 37,686.32, 52,004.52 and 20,918

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Solution

The fourth proportional to 37,686.32, 52,004.52 and 20,918 is: 28,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,686.32 : 52,004.52 = 20,918 : x
  2. Step 2: Convert to fraction form
    37,686.32/52,004.52 = 20,918/x
  3. Step 3: Cross multiply
    37,686.32x = 52,004.52 × 20,918
  4. Step 4: Simplify right side
    37,686.32x = 1,087,830,549.36
  5. Step 5: Solve for x
    x = 1,087,830,549.36/37,686.32
  6. Step 6: Final answer
    x = 28,865.40

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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.