Home / 22,559.14-31,130.81-12,487.60

Finding the Fourth Proportional to 22,559.14, 31,130.81 and 12,487.60

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Solution

The fourth proportional to 22,559.14, 31,130.81 and 12,487.60 is: 17,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,559.14 : 31,130.81 = 12,487.60 : x
  2. Step 2: Convert to fraction form
    22,559.14/31,130.81 = 12,487.60/x
  3. Step 3: Cross multiply
    22,559.14x = 31,130.81 × 12,487.60
  4. Step 4: Simplify right side
    22,559.14x = 388,748,947.30
  5. Step 5: Solve for x
    x = 388,748,947.30/22,559.14
  6. Step 6: Final answer
    x = 17,232.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.