Home / 28,915.70-43,341.15-14,870.30

Finding the Fourth Proportional to 28,915.70, 43,341.15 and 14,870.30

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Solution

The fourth proportional to 28,915.70, 43,341.15 and 14,870.30 is: 22,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.70 : 43,341.15 = 14,870.30 : x
  2. Step 2: Convert to fraction form
    28,915.70/43,341.15 = 14,870.30/x
  3. Step 3: Cross multiply
    28,915.70x = 43,341.15 × 14,870.30
  4. Step 4: Simplify right side
    28,915.70x = 644,495,902.85
  5. Step 5: Solve for x
    x = 644,495,902.85/28,915.70
  6. Step 6: Final answer
    x = 22,288.79

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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.