Home / 27,143.64-37,457.78-15,206.90

Finding the Fourth Proportional to 27,143.64, 37,457.78 and 15,206.90

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Solution

The fourth proportional to 27,143.64, 37,457.78 and 15,206.90 is: 20,985.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.64 : 37,457.78 = 15,206.90 : x
  2. Step 2: Convert to fraction form
    27,143.64/37,457.78 = 15,206.90/x
  3. Step 3: Cross multiply
    27,143.64x = 37,457.78 × 15,206.90
  4. Step 4: Simplify right side
    27,143.64x = 569,616,565.41
  5. Step 5: Solve for x
    x = 569,616,565.41/27,143.64
  6. Step 6: Final answer
    x = 20,985.27

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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.