Home / 28,312.36-39,066.75-15,566.06

Finding the Fourth Proportional to 28,312.36, 39,066.75 and 15,566.06

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Solution

The fourth proportional to 28,312.36, 39,066.75 and 15,566.06 is: 21,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.36 : 39,066.75 = 15,566.06 : x
  2. Step 2: Convert to fraction form
    28,312.36/39,066.75 = 15,566.06/x
  3. Step 3: Cross multiply
    28,312.36x = 39,066.75 × 15,566.06
  4. Step 4: Simplify right side
    28,312.36x = 608,115,472.17
  5. Step 5: Solve for x
    x = 608,115,472.17/28,312.36
  6. Step 6: Final answer
    x = 21,478.80

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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.