Home / 42,957.42-64,420.68-14,869.86

Finding the Fourth Proportional to 42,957.42, 64,420.68 and 14,869.86

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Solution

The fourth proportional to 42,957.42, 64,420.68 and 14,869.86 is: 22,299.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,957.42 : 64,420.68 = 14,869.86 : x
  2. Step 2: Convert to fraction form
    42,957.42/64,420.68 = 14,869.86/x
  3. Step 3: Cross multiply
    42,957.42x = 64,420.68 × 14,869.86
  4. Step 4: Simplify right side
    42,957.42x = 957,926,492.70
  5. Step 5: Solve for x
    x = 957,926,492.70/42,957.42
  6. Step 6: Final answer
    x = 22,299.44

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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.