Home / 21,501.81-29,672.53-12,070.44

Finding the Fourth Proportional to 21,501.81, 29,672.53 and 12,070.44

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Solution

The fourth proportional to 21,501.81, 29,672.53 and 12,070.44 is: 16,657.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,501.81 : 29,672.53 = 12,070.44 : x
  2. Step 2: Convert to fraction form
    21,501.81/29,672.53 = 12,070.44/x
  3. Step 3: Cross multiply
    21,501.81x = 29,672.53 × 12,070.44
  4. Step 4: Simplify right side
    21,501.81x = 358,160,462.84
  5. Step 5: Solve for x
    x = 358,160,462.84/21,501.81
  6. Step 6: Final answer
    x = 16,657.22

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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.