Home / 39,730.10-59,591.50-13,435.07

Finding the Fourth Proportional to 39,730.10, 59,591.50 and 13,435.07

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Solution

The fourth proportional to 39,730.10, 59,591.50 and 13,435.07 is: 20,151.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,730.10 : 59,591.50 = 13,435.07 : x
  2. Step 2: Convert to fraction form
    39,730.10/59,591.50 = 13,435.07/x
  3. Step 3: Cross multiply
    39,730.10x = 59,591.50 × 13,435.07
  4. Step 4: Simplify right side
    39,730.10x = 800,615,642.36
  5. Step 5: Solve for x
    x = 800,615,642.36/39,730.10
  6. Step 6: Final answer
    x = 20,151.36

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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.