Home / 28,356.18-42,516.02-13,564.76

Finding the Fourth Proportional to 28,356.18, 42,516.02 and 13,564.76

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Solution

The fourth proportional to 28,356.18, 42,516.02 and 13,564.76 is: 20,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356.18 : 42,516.02 = 13,564.76 : x
  2. Step 2: Convert to fraction form
    28,356.18/42,516.02 = 13,564.76/x
  3. Step 3: Cross multiply
    28,356.18x = 42,516.02 × 13,564.76
  4. Step 4: Simplify right side
    28,356.18x = 576,719,607.46
  5. Step 5: Solve for x
    x = 576,719,607.46/28,356.18
  6. Step 6: Final answer
    x = 20,338.41

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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.