Home / 21,423.49-32,154.95-10,900.87

Finding the Fourth Proportional to 21,423.49, 32,154.95 and 10,900.87

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Solution

The fourth proportional to 21,423.49, 32,154.95 and 10,900.87 is: 16,361.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.49 : 32,154.95 = 10,900.87 : x
  2. Step 2: Convert to fraction form
    21,423.49/32,154.95 = 10,900.87/x
  3. Step 3: Cross multiply
    21,423.49x = 32,154.95 × 10,900.87
  4. Step 4: Simplify right side
    21,423.49x = 350,516,929.81
  5. Step 5: Solve for x
    x = 350,516,929.81/21,423.49
  6. Step 6: Final answer
    x = 16,361.34

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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.