Home / 25,400.31-35,053.68-15,328.59

Finding the Fourth Proportional to 25,400.31, 35,053.68 and 15,328.59

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Solution

The fourth proportional to 25,400.31, 35,053.68 and 15,328.59 is: 21,154.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.31 : 35,053.68 = 15,328.59 : x
  2. Step 2: Convert to fraction form
    25,400.31/35,053.68 = 15,328.59/x
  3. Step 3: Cross multiply
    25,400.31x = 35,053.68 × 15,328.59
  4. Step 4: Simplify right side
    25,400.31x = 537,323,488.71
  5. Step 5: Solve for x
    x = 537,323,488.71/25,400.31
  6. Step 6: Final answer
    x = 21,154.21

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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.