Home / 42,508.47-63,762.84-20,316.81

Finding the Fourth Proportional to 42,508.47, 63,762.84 and 20,316.81

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Solution

The fourth proportional to 42,508.47, 63,762.84 and 20,316.81 is: 30,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,508.47 : 63,762.84 = 20,316.81 : x
  2. Step 2: Convert to fraction form
    42,508.47/63,762.84 = 20,316.81/x
  3. Step 3: Cross multiply
    42,508.47x = 63,762.84 × 20,316.81
  4. Step 4: Simplify right side
    42,508.47x = 1,295,457,505.34
  5. Step 5: Solve for x
    x = 1,295,457,505.34/42,508.47
  6. Step 6: Final answer
    x = 30,475.28

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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.