Home / 39,089.18-58,636.27-13,785.57

Finding the Fourth Proportional to 39,089.18, 58,636.27 and 13,785.57

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Solution

The fourth proportional to 39,089.18, 58,636.27 and 13,785.57 is: 20,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,089.18 : 58,636.27 = 13,785.57 : x
  2. Step 2: Convert to fraction form
    39,089.18/58,636.27 = 13,785.57/x
  3. Step 3: Cross multiply
    39,089.18x = 58,636.27 × 13,785.57
  4. Step 4: Simplify right side
    39,089.18x = 808,334,421.86
  5. Step 5: Solve for x
    x = 808,334,421.86/39,089.18
  6. Step 6: Final answer
    x = 20,679.24

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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.