Home / 28,660.18-42,985.40-13,074.16

Finding the Fourth Proportional to 28,660.18, 42,985.40 and 13,074.16

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Solution

The fourth proportional to 28,660.18, 42,985.40 and 13,074.16 is: 19,609.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.18 : 42,985.40 = 13,074.16 : x
  2. Step 2: Convert to fraction form
    28,660.18/42,985.40 = 13,074.16/x
  3. Step 3: Cross multiply
    28,660.18x = 42,985.40 × 13,074.16
  4. Step 4: Simplify right side
    28,660.18x = 561,997,997.26
  5. Step 5: Solve for x
    x = 561,997,997.26/28,660.18
  6. Step 6: Final answer
    x = 19,609.02

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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.