Home / 28,184.07-38,875.28-18,125.23

Finding the Fourth Proportional to 28,184.07, 38,875.28 and 18,125.23

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Solution

The fourth proportional to 28,184.07, 38,875.28 and 18,125.23 is: 25,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.07 : 38,875.28 = 18,125.23 : x
  2. Step 2: Convert to fraction form
    28,184.07/38,875.28 = 18,125.23/x
  3. Step 3: Cross multiply
    28,184.07x = 38,875.28 × 18,125.23
  4. Step 4: Simplify right side
    28,184.07x = 704,623,533.82
  5. Step 5: Solve for x
    x = 704,623,533.82/28,184.07
  6. Step 6: Final answer
    x = 25,000.78

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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.