Home / 19,884.08-27,439.90-10,931.36

Finding the Fourth Proportional to 19,884.08, 27,439.90 and 10,931.36

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Solution

The fourth proportional to 19,884.08, 27,439.90 and 10,931.36 is: 15,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.08 : 27,439.90 = 10,931.36 : x
  2. Step 2: Convert to fraction form
    19,884.08/27,439.90 = 10,931.36/x
  3. Step 3: Cross multiply
    19,884.08x = 27,439.90 × 10,931.36
  4. Step 4: Simplify right side
    19,884.08x = 299,955,260.74
  5. Step 5: Solve for x
    x = 299,955,260.74/19,884.08
  6. Step 6: Final answer
    x = 15,085.19

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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.