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Finding the Fourth Proportional to 39,746, 59,528.28 and 18,984.08

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Solution

The fourth proportional to 39,746, 59,528.28 and 18,984.08 is: 28,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,746 : 59,528.28 = 18,984.08 : x
  2. Step 2: Convert to fraction form
    39,746/59,528.28 = 18,984.08/x
  3. Step 3: Cross multiply
    39,746x = 59,528.28 × 18,984.08
  4. Step 4: Simplify right side
    39,746x = 1,130,089,629.78
  5. Step 5: Solve for x
    x = 1,130,089,629.78/39,746
  6. Step 6: Final answer
    x = 28,432.79

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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.