Home / 39,403.49-59,112.80-12,756.08

Finding the Fourth Proportional to 39,403.49, 59,112.80 and 12,756.08

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Solution

The fourth proportional to 39,403.49, 59,112.80 and 12,756.08 is: 19,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,403.49 : 59,112.80 = 12,756.08 : x
  2. Step 2: Convert to fraction form
    39,403.49/59,112.80 = 12,756.08/x
  3. Step 3: Cross multiply
    39,403.49x = 59,112.80 × 12,756.08
  4. Step 4: Simplify right side
    39,403.49x = 754,047,246.48
  5. Step 5: Solve for x
    x = 754,047,246.48/39,403.49
  6. Step 6: Final answer
    x = 19,136.56

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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.