Home / 30,127-45,206.26-21,875.18

Finding the Fourth Proportional to 30,127, 45,206.26 and 21,875.18

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Solution

The fourth proportional to 30,127, 45,206.26 and 21,875.18 is: 32,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,127 : 45,206.26 = 21,875.18 : x
  2. Step 2: Convert to fraction form
    30,127/45,206.26 = 21,875.18/x
  3. Step 3: Cross multiply
    30,127x = 45,206.26 × 21,875.18
  4. Step 4: Simplify right side
    30,127x = 988,895,074.63
  5. Step 5: Solve for x
    x = 988,895,074.63/30,127
  6. Step 6: Final answer
    x = 32,824.21

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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.