Home / 39,856.02-55,000.63-21,952.69

Finding the Fourth Proportional to 39,856.02, 55,000.63 and 21,952.69

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Solution

The fourth proportional to 39,856.02, 55,000.63 and 21,952.69 is: 30,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,856.02 : 55,000.63 = 21,952.69 : x
  2. Step 2: Convert to fraction form
    39,856.02/55,000.63 = 21,952.69/x
  3. Step 3: Cross multiply
    39,856.02x = 55,000.63 × 21,952.69
  4. Step 4: Simplify right side
    39,856.02x = 1,207,411,780.19
  5. Step 5: Solve for x
    x = 1,207,411,780.19/39,856.02
  6. Step 6: Final answer
    x = 30,294.34

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.