Home / 42,851.04-64,277.12-15,129.60

Finding the Fourth Proportional to 42,851.04, 64,277.12 and 15,129.60

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Solution

The fourth proportional to 42,851.04, 64,277.12 and 15,129.60 is: 22,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,851.04 : 64,277.12 = 15,129.60 : x
  2. Step 2: Convert to fraction form
    42,851.04/64,277.12 = 15,129.60/x
  3. Step 3: Cross multiply
    42,851.04x = 64,277.12 × 15,129.60
  4. Step 4: Simplify right side
    42,851.04x = 972,487,114.75
  5. Step 5: Solve for x
    x = 972,487,114.75/42,851.04
  6. Step 6: Final answer
    x = 22,694.60

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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.