Home / 20,569.45-30,854.06-4,987.07

Finding the Fourth Proportional to 20,569.45, 30,854.06 and 4,987.07

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Solution

The fourth proportional to 20,569.45, 30,854.06 and 4,987.07 is: 7,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.45 : 30,854.06 = 4,987.07 : x
  2. Step 2: Convert to fraction form
    20,569.45/30,854.06 = 4,987.07/x
  3. Step 3: Cross multiply
    20,569.45x = 30,854.06 × 4,987.07
  4. Step 4: Simplify right side
    20,569.45x = 153,871,357.00
  5. Step 5: Solve for x
    x = 153,871,357.00/20,569.45
  6. Step 6: Final answer
    x = 7,480.58

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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.