Home / 35,513.16-53,269.73-12,139.80

Finding the Fourth Proportional to 35,513.16, 53,269.73 and 12,139.80

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Solution

The fourth proportional to 35,513.16, 53,269.73 and 12,139.80 is: 18,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,513.16 : 53,269.73 = 12,139.80 : x
  2. Step 2: Convert to fraction form
    35,513.16/53,269.73 = 12,139.80/x
  3. Step 3: Cross multiply
    35,513.16x = 53,269.73 × 12,139.80
  4. Step 4: Simplify right side
    35,513.16x = 646,683,868.25
  5. Step 5: Solve for x
    x = 646,683,868.25/35,513.16
  6. Step 6: Final answer
    x = 18,209.70

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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.