Home / 42,547.13-63,820.71-19,146.23

Finding the Fourth Proportional to 42,547.13, 63,820.71 and 19,146.23

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Solution

The fourth proportional to 42,547.13, 63,820.71 and 19,146.23 is: 28,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,547.13 : 63,820.71 = 19,146.23 : x
  2. Step 2: Convert to fraction form
    42,547.13/63,820.71 = 19,146.23/x
  3. Step 3: Cross multiply
    42,547.13x = 63,820.71 × 19,146.23
  4. Step 4: Simplify right side
    42,547.13x = 1,221,925,992.42
  5. Step 5: Solve for x
    x = 1,221,925,992.42/42,547.13
  6. Step 6: Final answer
    x = 28,719.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.