Home / 28,115.40-42,160.71-14,964.66

Finding the Fourth Proportional to 28,115.40, 42,160.71 and 14,964.66

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Solution

The fourth proportional to 28,115.40, 42,160.71 and 14,964.66 is: 22,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.40 : 42,160.71 = 14,964.66 : x
  2. Step 2: Convert to fraction form
    28,115.40/42,160.71 = 14,964.66/x
  3. Step 3: Cross multiply
    28,115.40x = 42,160.71 × 14,964.66
  4. Step 4: Simplify right side
    28,115.40x = 630,920,690.51
  5. Step 5: Solve for x
    x = 630,920,690.51/28,115.40
  6. Step 6: Final answer
    x = 22,440.40

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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.