Home / 28,056.22-38,690.55-18,878.45

Finding the Fourth Proportional to 28,056.22, 38,690.55 and 18,878.45

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Solution

The fourth proportional to 28,056.22, 38,690.55 and 18,878.45 is: 26,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.22 : 38,690.55 = 18,878.45 : x
  2. Step 2: Convert to fraction form
    28,056.22/38,690.55 = 18,878.45/x
  3. Step 3: Cross multiply
    28,056.22x = 38,690.55 × 18,878.45
  4. Step 4: Simplify right side
    28,056.22x = 730,417,420.19
  5. Step 5: Solve for x
    x = 730,417,420.19/28,056.22
  6. Step 6: Final answer
    x = 26,034.07

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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.