Home / 21,411.68-32,123.32-8,927.56

Finding the Fourth Proportional to 21,411.68, 32,123.32 and 8,927.56

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Solution

The fourth proportional to 21,411.68, 32,123.32 and 8,927.56 is: 13,393.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.68 : 32,123.32 = 8,927.56 : x
  2. Step 2: Convert to fraction form
    21,411.68/32,123.32 = 8,927.56/x
  3. Step 3: Cross multiply
    21,411.68x = 32,123.32 × 8,927.56
  4. Step 4: Simplify right side
    21,411.68x = 286,782,866.70
  5. Step 5: Solve for x
    x = 286,782,866.70/21,411.68
  6. Step 6: Final answer
    x = 13,393.76

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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.