Home / 42,501.04-63,765.40-20,316.13

Finding the Fourth Proportional to 42,501.04, 63,765.40 and 20,316.13

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Solution

The fourth proportional to 42,501.04, 63,765.40 and 20,316.13 is: 30,480.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,501.04 : 63,765.40 = 20,316.13 : x
  2. Step 2: Convert to fraction form
    42,501.04/63,765.40 = 20,316.13/x
  3. Step 3: Cross multiply
    42,501.04x = 63,765.40 × 20,316.13
  4. Step 4: Simplify right side
    42,501.04x = 1,295,466,130.60
  5. Step 5: Solve for x
    x = 1,295,466,130.60/42,501.04
  6. Step 6: Final answer
    x = 30,480.81

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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.