Home / 20,534.04-28,336.39-11,581.00

Finding the Fourth Proportional to 20,534.04, 28,336.39 and 11,581.00

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Solution

The fourth proportional to 20,534.04, 28,336.39 and 11,581.00 is: 15,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.04 : 28,336.39 = 11,581.00 : x
  2. Step 2: Convert to fraction form
    20,534.04/28,336.39 = 11,581.00/x
  3. Step 3: Cross multiply
    20,534.04x = 28,336.39 × 11,581.00
  4. Step 4: Simplify right side
    20,534.04x = 328,163,632.80
  5. Step 5: Solve for x
    x = 328,163,632.80/20,534.04
  6. Step 6: Final answer
    x = 15,981.45

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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.