Home / 39,615.44-59,423.64-13,320.08

Finding the Fourth Proportional to 39,615.44, 59,423.64 and 13,320.08

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Solution

The fourth proportional to 39,615.44, 59,423.64 and 13,320.08 is: 19,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,615.44 : 59,423.64 = 13,320.08 : x
  2. Step 2: Convert to fraction form
    39,615.44/59,423.64 = 13,320.08/x
  3. Step 3: Cross multiply
    39,615.44x = 59,423.64 × 13,320.08
  4. Step 4: Simplify right side
    39,615.44x = 791,527,638.69
  5. Step 5: Solve for x
    x = 791,527,638.69/39,615.44
  6. Step 6: Final answer
    x = 19,980.28

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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.