Home / 27,155.34-37,457.10-19,587.78

Finding the Fourth Proportional to 27,155.34, 37,457.10 and 19,587.78

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Solution

The fourth proportional to 27,155.34, 37,457.10 and 19,587.78 is: 27,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.34 : 37,457.10 = 19,587.78 : x
  2. Step 2: Convert to fraction form
    27,155.34/37,457.10 = 19,587.78/x
  3. Step 3: Cross multiply
    27,155.34x = 37,457.10 × 19,587.78
  4. Step 4: Simplify right side
    27,155.34x = 733,701,434.24
  5. Step 5: Solve for x
    x = 733,701,434.24/27,155.34
  6. Step 6: Final answer
    x = 27,018.68

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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.