Home / 28,656.18-42,979.41-13,070.16

Finding the Fourth Proportional to 28,656.18, 42,979.41 and 13,070.16

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Solution

The fourth proportional to 28,656.18, 42,979.41 and 13,070.16 is: 19,603.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.18 : 42,979.41 = 13,070.16 : x
  2. Step 2: Convert to fraction form
    28,656.18/42,979.41 = 13,070.16/x
  3. Step 3: Cross multiply
    28,656.18x = 42,979.41 × 13,070.16
  4. Step 4: Simplify right side
    28,656.18x = 561,747,765.41
  5. Step 5: Solve for x
    x = 561,747,765.41/28,656.18
  6. Step 6: Final answer
    x = 19,603.02

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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.