Home / 28,033.28-38,683.95-15,457.76

Finding the Fourth Proportional to 28,033.28, 38,683.95 and 15,457.76

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Solution

The fourth proportional to 28,033.28, 38,683.95 and 15,457.76 is: 21,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.28 : 38,683.95 = 15,457.76 : x
  2. Step 2: Convert to fraction form
    28,033.28/38,683.95 = 15,457.76/x
  3. Step 3: Cross multiply
    28,033.28x = 38,683.95 × 15,457.76
  4. Step 4: Simplify right side
    28,033.28x = 597,967,214.95
  5. Step 5: Solve for x
    x = 597,967,214.95/28,033.28
  6. Step 6: Final answer
    x = 21,330.62

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Double scale
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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.