Home / 39,346.63-54,320.36-30,130.72

Finding the Fourth Proportional to 39,346.63, 54,320.36 and 30,130.72

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Solution

The fourth proportional to 39,346.63, 54,320.36 and 30,130.72 is: 41,597.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,346.63 : 54,320.36 = 30,130.72 : x
  2. Step 2: Convert to fraction form
    39,346.63/54,320.36 = 30,130.72/x
  3. Step 3: Cross multiply
    39,346.63x = 54,320.36 × 30,130.72
  4. Step 4: Simplify right side
    39,346.63x = 1,636,711,271.00
  5. Step 5: Solve for x
    x = 1,636,711,271.00/39,346.63
  6. Step 6: Final answer
    x = 41,597.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.