Home / 28,171.47-38,877.21-17,417.91

Finding the Fourth Proportional to 28,171.47, 38,877.21 and 17,417.91

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Solution

The fourth proportional to 28,171.47, 38,877.21 and 17,417.91 is: 24,037.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.47 : 38,877.21 = 17,417.91 : x
  2. Step 2: Convert to fraction form
    28,171.47/38,877.21 = 17,417.91/x
  3. Step 3: Cross multiply
    28,171.47x = 38,877.21 × 17,417.91
  4. Step 4: Simplify right side
    28,171.47x = 677,159,744.83
  5. Step 5: Solve for x
    x = 677,159,744.83/28,171.47
  6. Step 6: Final answer
    x = 24,037.08

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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.