Home / 20,895.02-31,352.51-9,206.70

Finding the Fourth Proportional to 20,895.02, 31,352.51 and 9,206.70

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Solution

The fourth proportional to 20,895.02, 31,352.51 and 9,206.70 is: 13,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.02 : 31,352.51 = 9,206.70 : x
  2. Step 2: Convert to fraction form
    20,895.02/31,352.51 = 9,206.70/x
  3. Step 3: Cross multiply
    20,895.02x = 31,352.51 × 9,206.70
  4. Step 4: Simplify right side
    20,895.02x = 288,653,153.82
  5. Step 5: Solve for x
    x = 288,653,153.82/20,895.02
  6. Step 6: Final answer
    x = 13,814.45

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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.