Home / 42,355.95-63,492.60-20,163.36

Finding the Fourth Proportional to 42,355.95, 63,492.60 and 20,163.36

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Solution

The fourth proportional to 42,355.95, 63,492.60 and 20,163.36 is: 30,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,355.95 : 63,492.60 = 20,163.36 : x
  2. Step 2: Convert to fraction form
    42,355.95/63,492.60 = 20,163.36/x
  3. Step 3: Cross multiply
    42,355.95x = 63,492.60 × 20,163.36
  4. Step 4: Simplify right side
    42,355.95x = 1,280,224,151.14
  5. Step 5: Solve for x
    x = 1,280,224,151.14/42,355.95
  6. Step 6: Final answer
    x = 30,225.37

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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.