Home / 28,330.43-39,094.45-15,581.16

Finding the Fourth Proportional to 28,330.43, 39,094.45 and 15,581.16

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Solution

The fourth proportional to 28,330.43, 39,094.45 and 15,581.16 is: 21,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.43 : 39,094.45 = 15,581.16 : x
  2. Step 2: Convert to fraction form
    28,330.43/39,094.45 = 15,581.16/x
  3. Step 3: Cross multiply
    28,330.43x = 39,094.45 × 15,581.16
  4. Step 4: Simplify right side
    28,330.43x = 609,136,841.61
  5. Step 5: Solve for x
    x = 609,136,841.61/28,330.43
  6. Step 6: Final answer
    x = 21,501.15

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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.