Home / 35,875.71-53,739.45-21,039.95

Finding the Fourth Proportional to 35,875.71, 53,739.45 and 21,039.95

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Solution

The fourth proportional to 35,875.71, 53,739.45 and 21,039.95 is: 31,516.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,875.71 : 53,739.45 = 21,039.95 : x
  2. Step 2: Convert to fraction form
    35,875.71/53,739.45 = 21,039.95/x
  3. Step 3: Cross multiply
    35,875.71x = 53,739.45 × 21,039.95
  4. Step 4: Simplify right side
    35,875.71x = 1,130,675,475.38
  5. Step 5: Solve for x
    x = 1,130,675,475.38/35,875.71
  6. Step 6: Final answer
    x = 31,516.46

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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.