Home / 38,280.76-57,437.58-13,307.20

Finding the Fourth Proportional to 38,280.76, 57,437.58 and 13,307.20

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Solution

The fourth proportional to 38,280.76, 57,437.58 and 13,307.20 is: 19,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,280.76 : 57,437.58 = 13,307.20 : x
  2. Step 2: Convert to fraction form
    38,280.76/57,437.58 = 13,307.20/x
  3. Step 3: Cross multiply
    38,280.76x = 57,437.58 × 13,307.20
  4. Step 4: Simplify right side
    38,280.76x = 764,333,364.58
  5. Step 5: Solve for x
    x = 764,333,364.58/38,280.76
  6. Step 6: Final answer
    x = 19,966.51

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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.