Home / 30,216.30-45,331.65-14,621.10

Finding the Fourth Proportional to 30,216.30, 45,331.65 and 14,621.10

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Solution

The fourth proportional to 30,216.30, 45,331.65 and 14,621.10 is: 21,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.30 : 45,331.65 = 14,621.10 : x
  2. Step 2: Convert to fraction form
    30,216.30/45,331.65 = 14,621.10/x
  3. Step 3: Cross multiply
    30,216.30x = 45,331.65 × 14,621.10
  4. Step 4: Simplify right side
    30,216.30x = 662,798,587.82
  5. Step 5: Solve for x
    x = 662,798,587.82/30,216.30
  6. Step 6: Final answer
    x = 21,935.13

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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.