Home / 21,688.16-32,529.20-6,897.15

Finding the Fourth Proportional to 21,688.16, 32,529.20 and 6,897.15

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Solution

The fourth proportional to 21,688.16, 32,529.20 and 6,897.15 is: 10,344.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688.16 : 32,529.20 = 6,897.15 : x
  2. Step 2: Convert to fraction form
    21,688.16/32,529.20 = 6,897.15/x
  3. Step 3: Cross multiply
    21,688.16x = 32,529.20 × 6,897.15
  4. Step 4: Simplify right side
    21,688.16x = 224,358,737.29
  5. Step 5: Solve for x
    x = 224,358,737.29/21,688.16
  6. Step 6: Final answer
    x = 10,344.76

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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.