Home / 20,854.18-31,261.83-7,703.02

Finding the Fourth Proportional to 20,854.18, 31,261.83 and 7,703.02

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Solution

The fourth proportional to 20,854.18, 31,261.83 and 7,703.02 is: 11,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854.18 : 31,261.83 = 7,703.02 : x
  2. Step 2: Convert to fraction form
    20,854.18/31,261.83 = 7,703.02/x
  3. Step 3: Cross multiply
    20,854.18x = 31,261.83 × 7,703.02
  4. Step 4: Simplify right side
    20,854.18x = 240,810,501.73
  5. Step 5: Solve for x
    x = 240,810,501.73/20,854.18
  6. Step 6: Final answer
    x = 11,547.35

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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.