Home / 21,530.07-32,301.23-8,386.20

Finding the Fourth Proportional to 21,530.07, 32,301.23 and 8,386.20

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Solution

The fourth proportional to 21,530.07, 32,301.23 and 8,386.20 is: 12,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.07 : 32,301.23 = 8,386.20 : x
  2. Step 2: Convert to fraction form
    21,530.07/32,301.23 = 8,386.20/x
  3. Step 3: Cross multiply
    21,530.07x = 32,301.23 × 8,386.20
  4. Step 4: Simplify right side
    21,530.07x = 270,884,533.10
  5. Step 5: Solve for x
    x = 270,884,533.10/21,530.07
  6. Step 6: Final answer
    x = 12,581.68

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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.