Home / 20,547.63-28,306.53-19,547.10

Finding the Fourth Proportional to 20,547.63, 28,306.53 and 19,547.10

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Solution

The fourth proportional to 20,547.63, 28,306.53 and 19,547.10 is: 26,928.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.63 : 28,306.53 = 19,547.10 : x
  2. Step 2: Convert to fraction form
    20,547.63/28,306.53 = 19,547.10/x
  3. Step 3: Cross multiply
    20,547.63x = 28,306.53 × 19,547.10
  4. Step 4: Simplify right side
    20,547.63x = 553,310,572.56
  5. Step 5: Solve for x
    x = 553,310,572.56/20,547.63
  6. Step 6: Final answer
    x = 26,928.19

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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.