Home / 19,870.04-27,419.99-10,916.97

Finding the Fourth Proportional to 19,870.04, 27,419.99 and 10,916.97

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Solution

The fourth proportional to 19,870.04, 27,419.99 and 10,916.97 is: 15,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,870.04 : 27,419.99 = 10,916.97 : x
  2. Step 2: Convert to fraction form
    19,870.04/27,419.99 = 10,916.97/x
  3. Step 3: Cross multiply
    19,870.04x = 27,419.99 × 10,916.97
  4. Step 4: Simplify right side
    19,870.04x = 299,343,153.65
  5. Step 5: Solve for x
    x = 299,343,153.65/19,870.04
  6. Step 6: Final answer
    x = 15,065.05

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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.