Home / 25,117.48-34,642.90-18,400.68

Finding the Fourth Proportional to 25,117.48, 34,642.90 and 18,400.68

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Solution

The fourth proportional to 25,117.48, 34,642.90 and 18,400.68 is: 25,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,117.48 : 34,642.90 = 18,400.68 : x
  2. Step 2: Convert to fraction form
    25,117.48/34,642.90 = 18,400.68/x
  3. Step 3: Cross multiply
    25,117.48x = 34,642.90 × 18,400.68
  4. Step 4: Simplify right side
    25,117.48x = 637,452,917.17
  5. Step 5: Solve for x
    x = 637,452,917.17/25,117.48
  6. Step 6: Final answer
    x = 25,378.86

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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.