Home / 35,905.36-53,798.76-20,870.30

Finding the Fourth Proportional to 35,905.36, 53,798.76 and 20,870.30

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Solution

The fourth proportional to 35,905.36, 53,798.76 and 20,870.30 is: 31,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,905.36 : 53,798.76 = 20,870.30 : x
  2. Step 2: Convert to fraction form
    35,905.36/53,798.76 = 20,870.30/x
  3. Step 3: Cross multiply
    35,905.36x = 53,798.76 × 20,870.30
  4. Step 4: Simplify right side
    35,905.36x = 1,122,796,260.83
  5. Step 5: Solve for x
    x = 1,122,796,260.83/35,905.36
  6. Step 6: Final answer
    x = 31,270.99

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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.