Home / 19,673.10-27,148.64-10,720.40

Finding the Fourth Proportional to 19,673.10, 27,148.64 and 10,720.40

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Solution

The fourth proportional to 19,673.10, 27,148.64 and 10,720.40 is: 14,794.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,673.10 : 27,148.64 = 10,720.40 : x
  2. Step 2: Convert to fraction form
    19,673.10/27,148.64 = 10,720.40/x
  3. Step 3: Cross multiply
    19,673.10x = 27,148.64 × 10,720.40
  4. Step 4: Simplify right side
    19,673.10x = 291,044,090.91
  5. Step 5: Solve for x
    x = 291,044,090.91/19,673.10
  6. Step 6: Final answer
    x = 14,794.01

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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.