Home / 19,649.79-27,070.61-13,671.18

Finding the Fourth Proportional to 19,649.79, 27,070.61 and 13,671.18

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Solution

The fourth proportional to 19,649.79, 27,070.61 and 13,671.18 is: 18,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.79 : 27,070.61 = 13,671.18 : x
  2. Step 2: Convert to fraction form
    19,649.79/27,070.61 = 13,671.18/x
  3. Step 3: Cross multiply
    19,649.79x = 27,070.61 × 13,671.18
  4. Step 4: Simplify right side
    19,649.79x = 370,087,113.66
  5. Step 5: Solve for x
    x = 370,087,113.66/19,649.79
  6. Step 6: Final answer
    x = 18,834.15

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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.