Home / 21,547.48-32,321.52-7,507.72

Finding the Fourth Proportional to 21,547.48, 32,321.52 and 7,507.72

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Solution

The fourth proportional to 21,547.48, 32,321.52 and 7,507.72 is: 11,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.48 : 32,321.52 = 7,507.72 : x
  2. Step 2: Convert to fraction form
    21,547.48/32,321.52 = 7,507.72/x
  3. Step 3: Cross multiply
    21,547.48x = 32,321.52 × 7,507.72
  4. Step 4: Simplify right side
    21,547.48x = 242,660,922.13
  5. Step 5: Solve for x
    x = 242,660,922.13/21,547.48
  6. Step 6: Final answer
    x = 11,261.68

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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.