Home / 28,293.77-39,045.90-15,547.51

Finding the Fourth Proportional to 28,293.77, 39,045.90 and 15,547.51

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Solution

The fourth proportional to 28,293.77, 39,045.90 and 15,547.51 is: 21,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.77 : 39,045.90 = 15,547.51 : x
  2. Step 2: Convert to fraction form
    28,293.77/39,045.90 = 15,547.51/x
  3. Step 3: Cross multiply
    28,293.77x = 39,045.90 × 15,547.51
  4. Step 4: Simplify right side
    28,293.77x = 607,066,627.82
  5. Step 5: Solve for x
    x = 607,066,627.82/28,293.77
  6. Step 6: Final answer
    x = 21,455.84

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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.