Home / 21,510.81-32,270.76-6,720.84

Finding the Fourth Proportional to 21,510.81, 32,270.76 and 6,720.84

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Solution

The fourth proportional to 21,510.81, 32,270.76 and 6,720.84 is: 10,082.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,510.81 : 32,270.76 = 6,720.84 : x
  2. Step 2: Convert to fraction form
    21,510.81/32,270.76 = 6,720.84/x
  3. Step 3: Cross multiply
    21,510.81x = 32,270.76 × 6,720.84
  4. Step 4: Simplify right side
    21,510.81x = 216,886,550.76
  5. Step 5: Solve for x
    x = 216,886,550.76/21,510.81
  6. Step 6: Final answer
    x = 10,082.68

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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.