Home / 25,810.18-38,721.93-8,280.16

Finding the Fourth Proportional to 25,810.18, 38,721.93 and 8,280.16

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Solution

The fourth proportional to 25,810.18, 38,721.93 and 8,280.16 is: 12,422.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,810.18 : 38,721.93 = 8,280.16 : x
  2. Step 2: Convert to fraction form
    25,810.18/38,721.93 = 8,280.16/x
  3. Step 3: Cross multiply
    25,810.18x = 38,721.93 × 8,280.16
  4. Step 4: Simplify right side
    25,810.18x = 320,623,775.91
  5. Step 5: Solve for x
    x = 320,623,775.91/25,810.18
  6. Step 6: Final answer
    x = 12,422.38

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1.5x scale

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.