Home / 20,598.05-28,430.69-13,048.04

Finding the Fourth Proportional to 20,598.05, 28,430.69 and 13,048.04

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Solution

The fourth proportional to 20,598.05, 28,430.69 and 13,048.04 is: 18,009.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.05 : 28,430.69 = 13,048.04 : x
  2. Step 2: Convert to fraction form
    20,598.05/28,430.69 = 13,048.04/x
  3. Step 3: Cross multiply
    20,598.05x = 28,430.69 × 13,048.04
  4. Step 4: Simplify right side
    20,598.05x = 370,964,572.95
  5. Step 5: Solve for x
    x = 370,964,572.95/20,598.05
  6. Step 6: Final answer
    x = 18,009.70

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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.