Home / 37,688.58-52,008.21-20,920.50

Finding the Fourth Proportional to 37,688.58, 52,008.21 and 20,920.50

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Solution

The fourth proportional to 37,688.58, 52,008.21 and 20,920.50 is: 28,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,688.58 : 52,008.21 = 20,920.50 : x
  2. Step 2: Convert to fraction form
    37,688.58/52,008.21 = 20,920.50/x
  3. Step 3: Cross multiply
    37,688.58x = 52,008.21 × 20,920.50
  4. Step 4: Simplify right side
    37,688.58x = 1,088,037,757.31
  5. Step 5: Solve for x
    x = 1,088,037,757.31/37,688.58
  6. Step 6: Final answer
    x = 28,869.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.