Home / 19,669.98-27,139.74-12,017.28

Finding the Fourth Proportional to 19,669.98, 27,139.74 and 12,017.28

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Solution

The fourth proportional to 19,669.98, 27,139.74 and 12,017.28 is: 16,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.98 : 27,139.74 = 12,017.28 : x
  2. Step 2: Convert to fraction form
    19,669.98/27,139.74 = 12,017.28/x
  3. Step 3: Cross multiply
    19,669.98x = 27,139.74 × 12,017.28
  4. Step 4: Simplify right side
    19,669.98x = 326,145,854.71
  5. Step 5: Solve for x
    x = 326,145,854.71/19,669.98
  6. Step 6: Final answer
    x = 16,580.89

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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.