Home / 42,509.24-63,774.12-20,316.32

Finding the Fourth Proportional to 42,509.24, 63,774.12 and 20,316.32

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Solution

The fourth proportional to 42,509.24, 63,774.12 and 20,316.32 is: 30,479.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,509.24 : 63,774.12 = 20,316.32 : x
  2. Step 2: Convert to fraction form
    42,509.24/63,774.12 = 20,316.32/x
  3. Step 3: Cross multiply
    42,509.24x = 63,774.12 × 20,316.32
  4. Step 4: Simplify right side
    42,509.24x = 1,295,655,429.64
  5. Step 5: Solve for x
    x = 1,295,655,429.64/42,509.24
  6. Step 6: Final answer
    x = 30,479.38

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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.