Home / 35,151.67-48,501.80-20,816.00

Finding the Fourth Proportional to 35,151.67, 48,501.80 and 20,816.00

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Solution

The fourth proportional to 35,151.67, 48,501.80 and 20,816.00 is: 28,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,151.67 : 48,501.80 = 20,816.00 : x
  2. Step 2: Convert to fraction form
    35,151.67/48,501.80 = 20,816.00/x
  3. Step 3: Cross multiply
    35,151.67x = 48,501.80 × 20,816.00
  4. Step 4: Simplify right side
    35,151.67x = 1,009,613,772.07
  5. Step 5: Solve for x
    x = 1,009,613,772.07/35,151.67
  6. Step 6: Final answer
    x = 28,721.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.