Home / 39,239.79-58,854.69-12,938.01

Finding the Fourth Proportional to 39,239.79, 58,854.69 and 12,938.01

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Solution

The fourth proportional to 39,239.79, 58,854.69 and 12,938.01 is: 19,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239.79 : 58,854.69 = 12,938.01 : x
  2. Step 2: Convert to fraction form
    39,239.79/58,854.69 = 12,938.01/x
  3. Step 3: Cross multiply
    39,239.79x = 58,854.69 × 12,938.01
  4. Step 4: Simplify right side
    39,239.79x = 761,462,567.77
  5. Step 5: Solve for x
    x = 761,462,567.77/39,239.79
  6. Step 6: Final answer
    x = 19,405.37

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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.