Home / 15,032.13-20,730.15-11,212.20

Finding the Fourth Proportional to 15,032.13, 20,730.15 and 11,212.20

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Solution

The fourth proportional to 15,032.13, 20,730.15 and 11,212.20 is: 15,462.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,032.13 : 20,730.15 = 11,212.20 : x
  2. Step 2: Convert to fraction form
    15,032.13/20,730.15 = 11,212.20/x
  3. Step 3: Cross multiply
    15,032.13x = 20,730.15 × 11,212.20
  4. Step 4: Simplify right side
    15,032.13x = 232,430,587.83
  5. Step 5: Solve for x
    x = 232,430,587.83/15,032.13
  6. Step 6: Final answer
    x = 15,462.25

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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.