Home / 42,325.12-63,491.93-15,678.28

Finding the Fourth Proportional to 42,325.12, 63,491.93 and 15,678.28

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Solution

The fourth proportional to 42,325.12, 63,491.93 and 15,678.28 is: 23,518.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,325.12 : 63,491.93 = 15,678.28 : x
  2. Step 2: Convert to fraction form
    42,325.12/63,491.93 = 15,678.28/x
  3. Step 3: Cross multiply
    42,325.12x = 63,491.93 × 15,678.28
  4. Step 4: Simplify right side
    42,325.12x = 995,444,256.28
  5. Step 5: Solve for x
    x = 995,444,256.28/42,325.12
  6. Step 6: Final answer
    x = 23,518.99

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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.