Home / 35,613.90-53,421.93-12,240

Finding the Fourth Proportional to 35,613.90, 53,421.93 and 12,240

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Solution

The fourth proportional to 35,613.90, 53,421.93 and 12,240 is: 18,360.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,613.90 : 53,421.93 = 12,240 : x
  2. Step 2: Convert to fraction form
    35,613.90/53,421.93 = 12,240/x
  3. Step 3: Cross multiply
    35,613.90x = 53,421.93 × 12,240
  4. Step 4: Simplify right side
    35,613.90x = 653,884,423.20
  5. Step 5: Solve for x
    x = 653,884,423.20/35,613.90
  6. Step 6: Final answer
    x = 18,360.37

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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.