Home / 19,070.28-28,599.84-7,380.72

Finding the Fourth Proportional to 19,070.28, 28,599.84 and 7,380.72

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Solution

The fourth proportional to 19,070.28, 28,599.84 and 7,380.72 is: 11,068.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.28 : 28,599.84 = 7,380.72 : x
  2. Step 2: Convert to fraction form
    19,070.28/28,599.84 = 7,380.72/x
  3. Step 3: Cross multiply
    19,070.28x = 28,599.84 × 7,380.72
  4. Step 4: Simplify right side
    19,070.28x = 211,087,411.08
  5. Step 5: Solve for x
    x = 211,087,411.08/19,070.28
  6. Step 6: Final answer
    x = 11,068.92

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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.