Home / 20,535.15-30,802.75-4,952.78

Finding the Fourth Proportional to 20,535.15, 30,802.75 and 4,952.78

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Solution

The fourth proportional to 20,535.15, 30,802.75 and 4,952.78 is: 7,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.15 : 30,802.75 = 4,952.78 : x
  2. Step 2: Convert to fraction form
    20,535.15/30,802.75 = 4,952.78/x
  3. Step 3: Cross multiply
    20,535.15x = 30,802.75 × 4,952.78
  4. Step 4: Simplify right side
    20,535.15x = 152,559,193.26
  5. Step 5: Solve for x
    x = 152,559,193.26/20,535.15
  6. Step 6: Final answer
    x = 7,429.17

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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.