Home / 22,567.04-31,145.76-13,140.80

Finding the Fourth Proportional to 22,567.04, 31,145.76 and 13,140.80

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Solution

The fourth proportional to 22,567.04, 31,145.76 and 13,140.80 is: 18,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,567.04 : 31,145.76 = 13,140.80 : x
  2. Step 2: Convert to fraction form
    22,567.04/31,145.76 = 13,140.80/x
  3. Step 3: Cross multiply
    22,567.04x = 31,145.76 × 13,140.80
  4. Step 4: Simplify right side
    22,567.04x = 409,280,203.01
  5. Step 5: Solve for x
    x = 409,280,203.01/22,567.04
  6. Step 6: Final answer
    x = 18,136.19

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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.