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Finding the Fourth Proportional to 47,001.48, 70,485.80 and 18,914.24

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Solution

The fourth proportional to 47,001.48, 70,485.80 and 18,914.24 is: 28,364.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,001.48 : 70,485.80 = 18,914.24 : x
  2. Step 2: Convert to fraction form
    47,001.48/70,485.80 = 18,914.24/x
  3. Step 3: Cross multiply
    47,001.48x = 70,485.80 × 18,914.24
  4. Step 4: Simplify right side
    47,001.48x = 1,333,185,337.79
  5. Step 5: Solve for x
    x = 1,333,185,337.79/47,001.48
  6. Step 6: Final answer
    x = 28,364.75

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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.