Home / 42,681.52-64,025.70-11,516.32

Finding the Fourth Proportional to 42,681.52, 64,025.70 and 11,516.32

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Solution

The fourth proportional to 42,681.52, 64,025.70 and 11,516.32 is: 17,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,681.52 : 64,025.70 = 11,516.32 : x
  2. Step 2: Convert to fraction form
    42,681.52/64,025.70 = 11,516.32/x
  3. Step 3: Cross multiply
    42,681.52x = 64,025.70 × 11,516.32
  4. Step 4: Simplify right side
    42,681.52x = 737,340,449.42
  5. Step 5: Solve for x
    x = 737,340,449.42/42,681.52
  6. Step 6: Final answer
    x = 17,275.40

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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.