Home / 27,816.61-38,386.88-15,070.12

Finding the Fourth Proportional to 27,816.61, 38,386.88 and 15,070.12

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Solution

The fourth proportional to 27,816.61, 38,386.88 and 15,070.12 is: 20,796.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,816.61 : 38,386.88 = 15,070.12 : x
  2. Step 2: Convert to fraction form
    27,816.61/38,386.88 = 15,070.12/x
  3. Step 3: Cross multiply
    27,816.61x = 38,386.88 × 15,070.12
  4. Step 4: Simplify right side
    27,816.61x = 578,494,840.04
  5. Step 5: Solve for x
    x = 578,494,840.04/27,816.61
  6. Step 6: Final answer
    x = 20,796.74

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Double scale
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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.