Home / 28,106.03-38,792.81-18,547.63

Finding the Fourth Proportional to 28,106.03, 38,792.81 and 18,547.63

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Solution

The fourth proportional to 28,106.03, 38,792.81 and 18,547.63 is: 25,600.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106.03 : 38,792.81 = 18,547.63 : x
  2. Step 2: Convert to fraction form
    28,106.03/38,792.81 = 18,547.63/x
  3. Step 3: Cross multiply
    28,106.03x = 38,792.81 × 18,547.63
  4. Step 4: Simplify right side
    28,106.03x = 719,514,686.54
  5. Step 5: Solve for x
    x = 719,514,686.54/28,106.03
  6. Step 6: Final answer
    x = 25,600.01

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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.