Home / 22,711.51-34,068.70-7,129.75

Finding the Fourth Proportional to 22,711.51, 34,068.70 and 7,129.75

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Solution

The fourth proportional to 22,711.51, 34,068.70 and 7,129.75 is: 10,695.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,711.51 : 34,068.70 = 7,129.75 : x
  2. Step 2: Convert to fraction form
    22,711.51/34,068.70 = 7,129.75/x
  3. Step 3: Cross multiply
    22,711.51x = 34,068.70 × 7,129.75
  4. Step 4: Simplify right side
    22,711.51x = 242,901,313.83
  5. Step 5: Solve for x
    x = 242,901,313.83/22,711.51
  6. Step 6: Final answer
    x = 10,695.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.