Home / 32,878.13-45,360.71-18,720.95

Finding the Fourth Proportional to 32,878.13, 45,360.71 and 18,720.95

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Solution

The fourth proportional to 32,878.13, 45,360.71 and 18,720.95 is: 25,828.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,878.13 : 45,360.71 = 18,720.95 : x
  2. Step 2: Convert to fraction form
    32,878.13/45,360.71 = 18,720.95/x
  3. Step 3: Cross multiply
    32,878.13x = 45,360.71 × 18,720.95
  4. Step 4: Simplify right side
    32,878.13x = 849,195,583.87
  5. Step 5: Solve for x
    x = 849,195,583.87/32,878.13
  6. Step 6: Final answer
    x = 25,828.59

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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.