Home / 21,312.64-29,411.88-12,363.04

Finding the Fourth Proportional to 21,312.64, 29,411.88 and 12,363.04

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Solution

The fourth proportional to 21,312.64, 29,411.88 and 12,363.04 is: 17,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312.64 : 29,411.88 = 12,363.04 : x
  2. Step 2: Convert to fraction form
    21,312.64/29,411.88 = 12,363.04/x
  3. Step 3: Cross multiply
    21,312.64x = 29,411.88 × 12,363.04
  4. Step 4: Simplify right side
    21,312.64x = 363,620,248.92
  5. Step 5: Solve for x
    x = 363,620,248.92/21,312.64
  6. Step 6: Final answer
    x = 17,061.25

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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.