Home / 20,588.48-28,397.10-13,036.04

Finding the Fourth Proportional to 20,588.48, 28,397.10 and 13,036.04

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Solution

The fourth proportional to 20,588.48, 28,397.10 and 13,036.04 is: 17,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.48 : 28,397.10 = 13,036.04 : x
  2. Step 2: Convert to fraction form
    20,588.48/28,397.10 = 13,036.04/x
  3. Step 3: Cross multiply
    20,588.48x = 28,397.10 × 13,036.04
  4. Step 4: Simplify right side
    20,588.48x = 370,185,731.48
  5. Step 5: Solve for x
    x = 370,185,731.48/20,588.48
  6. Step 6: Final answer
    x = 17,980.24

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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.