Home / 20,203.59-30,312.69-10,347.51

Finding the Fourth Proportional to 20,203.59, 30,312.69 and 10,347.51

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Solution

The fourth proportional to 20,203.59, 30,312.69 and 10,347.51 is: 15,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.59 : 30,312.69 = 10,347.51 : x
  2. Step 2: Convert to fraction form
    20,203.59/30,312.69 = 10,347.51/x
  3. Step 3: Cross multiply
    20,203.59x = 30,312.69 × 10,347.51
  4. Step 4: Simplify right side
    20,203.59x = 313,660,862.90
  5. Step 5: Solve for x
    x = 313,660,862.90/20,203.59
  6. Step 6: Final answer
    x = 15,525.01

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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.