Home / 20,895.84-31,317.84-10,510.56

Finding the Fourth Proportional to 20,895.84, 31,317.84 and 10,510.56

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Solution

The fourth proportional to 20,895.84, 31,317.84 and 10,510.56 is: 15,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.84 : 31,317.84 = 10,510.56 : x
  2. Step 2: Convert to fraction form
    20,895.84/31,317.84 = 10,510.56/x
  3. Step 3: Cross multiply
    20,895.84x = 31,317.84 × 10,510.56
  4. Step 4: Simplify right side
    20,895.84x = 329,168,036.39
  5. Step 5: Solve for x
    x = 329,168,036.39/20,895.84
  6. Step 6: Final answer
    x = 15,752.80

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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.