Home / 21,283.05-31,927.95-6,488.58

Finding the Fourth Proportional to 21,283.05, 31,927.95 and 6,488.58

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Solution

The fourth proportional to 21,283.05, 31,927.95 and 6,488.58 is: 9,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.05 : 31,927.95 = 6,488.58 : x
  2. Step 2: Convert to fraction form
    21,283.05/31,927.95 = 6,488.58/x
  3. Step 3: Cross multiply
    21,283.05x = 31,927.95 × 6,488.58
  4. Step 4: Simplify right side
    21,283.05x = 207,167,057.81
  5. Step 5: Solve for x
    x = 207,167,057.81/21,283.05
  6. Step 6: Final answer
    x = 9,733.90

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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.