Home / 23,045.17-31,802.55-12,971.65

Finding the Fourth Proportional to 23,045.17, 31,802.55 and 12,971.65

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Solution

The fourth proportional to 23,045.17, 31,802.55 and 12,971.65 is: 17,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,045.17 : 31,802.55 = 12,971.65 : x
  2. Step 2: Convert to fraction form
    23,045.17/31,802.55 = 12,971.65/x
  3. Step 3: Cross multiply
    23,045.17x = 31,802.55 × 12,971.65
  4. Step 4: Simplify right side
    23,045.17x = 412,531,547.71
  5. Step 5: Solve for x
    x = 412,531,547.71/23,045.17
  6. Step 6: Final answer
    x = 17,901.00

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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.