Home / 28,877.40-43,316.10-14,078.70

Finding the Fourth Proportional to 28,877.40, 43,316.10 and 14,078.70

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Solution

The fourth proportional to 28,877.40, 43,316.10 and 14,078.70 is: 21,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.40 : 43,316.10 = 14,078.70 : x
  2. Step 2: Convert to fraction form
    28,877.40/43,316.10 = 14,078.70/x
  3. Step 3: Cross multiply
    28,877.40x = 43,316.10 × 14,078.70
  4. Step 4: Simplify right side
    28,877.40x = 609,834,377.07
  5. Step 5: Solve for x
    x = 609,834,377.07/28,877.40
  6. Step 6: Final answer
    x = 21,118.05

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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.