Home / 47,345.80-71,018.70-28,683.40

Finding the Fourth Proportional to 47,345.80, 71,018.70 and 28,683.40

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Solution

The fourth proportional to 47,345.80, 71,018.70 and 28,683.40 is: 43,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,345.80 : 71,018.70 = 28,683.40 : x
  2. Step 2: Convert to fraction form
    47,345.80/71,018.70 = 28,683.40/x
  3. Step 3: Cross multiply
    47,345.80x = 71,018.70 × 28,683.40
  4. Step 4: Simplify right side
    47,345.80x = 2,037,057,779.58
  5. Step 5: Solve for x
    x = 2,037,057,779.58/47,345.80
  6. Step 6: Final answer
    x = 43,025.10

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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.