Home / 28,347.86-39,111.93-18,282.08

Finding the Fourth Proportional to 28,347.86, 39,111.93 and 18,282.08

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Solution

The fourth proportional to 28,347.86, 39,111.93 and 18,282.08 is: 25,224.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.86 : 39,111.93 = 18,282.08 : x
  2. Step 2: Convert to fraction form
    28,347.86/39,111.93 = 18,282.08/x
  3. Step 3: Cross multiply
    28,347.86x = 39,111.93 × 18,282.08
  4. Step 4: Simplify right side
    28,347.86x = 715,047,433.21
  5. Step 5: Solve for x
    x = 715,047,433.21/28,347.86
  6. Step 6: Final answer
    x = 25,224.04

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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.