Home / 28,366.74-39,148.02-18,790.11

Finding the Fourth Proportional to 28,366.74, 39,148.02 and 18,790.11

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Solution

The fourth proportional to 28,366.74, 39,148.02 and 18,790.11 is: 25,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.74 : 39,148.02 = 18,790.11 : x
  2. Step 2: Convert to fraction form
    28,366.74/39,148.02 = 18,790.11/x
  3. Step 3: Cross multiply
    28,366.74x = 39,148.02 × 18,790.11
  4. Step 4: Simplify right side
    28,366.74x = 735,595,602.08
  5. Step 5: Solve for x
    x = 735,595,602.08/28,366.74
  6. Step 6: Final answer
    x = 25,931.62

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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.