Home / 30,312.64-41,798.01-20,754.10

Finding the Fourth Proportional to 30,312.64, 41,798.01 and 20,754.10

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Solution

The fourth proportional to 30,312.64, 41,798.01 and 20,754.10 is: 28,617.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.64 : 41,798.01 = 20,754.10 : x
  2. Step 2: Convert to fraction form
    30,312.64/41,798.01 = 20,754.10/x
  3. Step 3: Cross multiply
    30,312.64x = 41,798.01 × 20,754.10
  4. Step 4: Simplify right side
    30,312.64x = 867,480,079.34
  5. Step 5: Solve for x
    x = 867,480,079.34/30,312.64
  6. Step 6: Final answer
    x = 28,617.77

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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.