Home / 20,347.47-30,529.97-10,985.62

Finding the Fourth Proportional to 20,347.47, 30,529.97 and 10,985.62

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Solution

The fourth proportional to 20,347.47, 30,529.97 and 10,985.62 is: 16,483.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.47 : 30,529.97 = 10,985.62 : x
  2. Step 2: Convert to fraction form
    20,347.47/30,529.97 = 10,985.62/x
  3. Step 3: Cross multiply
    20,347.47x = 30,529.97 × 10,985.62
  4. Step 4: Simplify right side
    20,347.47x = 335,390,594.10
  5. Step 5: Solve for x
    x = 335,390,594.10/20,347.47
  6. Step 6: Final answer
    x = 16,483.16

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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.