Home / 30,159.72-41,621.80-16,730.20

Finding the Fourth Proportional to 30,159.72, 41,621.80 and 16,730.20

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Solution

The fourth proportional to 30,159.72, 41,621.80 and 16,730.20 is: 23,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159.72 : 41,621.80 = 16,730.20 : x
  2. Step 2: Convert to fraction form
    30,159.72/41,621.80 = 16,730.20/x
  3. Step 3: Cross multiply
    30,159.72x = 41,621.80 × 16,730.20
  4. Step 4: Simplify right side
    30,159.72x = 696,341,038.36
  5. Step 5: Solve for x
    x = 696,341,038.36/30,159.72
  6. Step 6: Final answer
    x = 23,088.45

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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.