Home / 37,931.40-52,345.30-21,164.40

Finding the Fourth Proportional to 37,931.40, 52,345.30 and 21,164.40

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Solution

The fourth proportional to 37,931.40, 52,345.30 and 21,164.40 is: 29,206.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,931.40 : 52,345.30 = 21,164.40 : x
  2. Step 2: Convert to fraction form
    37,931.40/52,345.30 = 21,164.40/x
  3. Step 3: Cross multiply
    37,931.40x = 52,345.30 × 21,164.40
  4. Step 4: Simplify right side
    37,931.40x = 1,107,856,867.32
  5. Step 5: Solve for x
    x = 1,107,856,867.32/37,931.40
  6. Step 6: Final answer
    x = 29,206.85

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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.