Home / 42,968.07-64,409.72-18,015.21

Finding the Fourth Proportional to 42,968.07, 64,409.72 and 18,015.21

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Solution

The fourth proportional to 42,968.07, 64,409.72 and 18,015.21 is: 27,005.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,968.07 : 64,409.72 = 18,015.21 : x
  2. Step 2: Convert to fraction form
    42,968.07/64,409.72 = 18,015.21/x
  3. Step 3: Cross multiply
    42,968.07x = 64,409.72 × 18,015.21
  4. Step 4: Simplify right side
    42,968.07x = 1,160,354,541.77
  5. Step 5: Solve for x
    x = 1,160,354,541.77/42,968.07
  6. Step 6: Final answer
    x = 27,005.04

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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.