Home / 19,877.50-27,431.01-10,925.92

Finding the Fourth Proportional to 19,877.50, 27,431.01 and 10,925.92

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Solution

The fourth proportional to 19,877.50, 27,431.01 and 10,925.92 is: 15,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.50 : 27,431.01 = 10,925.92 : x
  2. Step 2: Convert to fraction form
    19,877.50/27,431.01 = 10,925.92/x
  3. Step 3: Cross multiply
    19,877.50x = 27,431.01 × 10,925.92
  4. Step 4: Simplify right side
    19,877.50x = 299,708,828.99
  5. Step 5: Solve for x
    x = 299,708,828.99/19,877.50
  6. Step 6: Final answer
    x = 15,077.80

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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.