Home / 36,931.36-50,966.40-21,018.12

Finding the Fourth Proportional to 36,931.36, 50,966.40 and 21,018.12

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Solution

The fourth proportional to 36,931.36, 50,966.40 and 21,018.12 is: 29,005.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,931.36 : 50,966.40 = 21,018.12 : x
  2. Step 2: Convert to fraction form
    36,931.36/50,966.40 = 21,018.12/x
  3. Step 3: Cross multiply
    36,931.36x = 50,966.40 × 21,018.12
  4. Step 4: Simplify right side
    36,931.36x = 1,071,217,911.17
  5. Step 5: Solve for x
    x = 1,071,217,911.17/36,931.36
  6. Step 6: Final answer
    x = 29,005.64

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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.